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d3-array - npm Package Compare versions

Comparing version 3.0.4 to 3.1.0

src/rank.js

28

dist/d3-array.js

@@ -1,2 +0,2 @@

// https://d3js.org/d3-array/ v3.0.4 Copyright 2010-2021 Mike Bostock
// https://d3js.org/d3-array/ v3.1.0 Copyright 2010-2021 Mike Bostock
(function (global, factory) {

@@ -6,3 +6,3 @@ typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :

(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.d3 = global.d3 || {}));
}(this, (function (exports) { 'use strict';
})(this, (function (exports) { 'use strict';

@@ -892,2 +892,23 @@ function ascending(a, b) {

function rank(values, valueof) {
if (typeof values[Symbol.iterator] !== "function") throw new TypeError("values is not iterable");
values = Array.from(values, valueof);
const n = values.length;
const r = new Float64Array(n);
let last, l;
sort(range(n), (i) => values[i]).forEach((j, i) => {
const value = values[j];
if (value == null || !(value <= value)) {
r[j] = NaN;
return;
}
if (last === undefined || !(value <= last)) {
last = value;
l = i;
}
r[j] = l;
});
return r;
}
function least(values, compare = ascending) {

@@ -1226,2 +1247,3 @@ let min;

exports.range = range;
exports.rank = rank;
exports.reduce = reduce;

@@ -1252,2 +1274,2 @@ exports.reverse = reverse;

})));
}));

4

dist/d3-array.min.js

@@ -1,2 +0,2 @@

// https://d3js.org/d3-array/ v3.0.4 Copyright 2010-2021 Mike Bostock
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r}function c(t){return 0|t.length}function a(t){return!(t>0)}function h(t){return"object"!=typeof t||"length"in t?t:Array.from(t)}function d(t,n){let r,e=0,o=0,f=0;if(void 0===n)for(let n of t)null!=n&&(n=+n)>=n&&(r=n-o,o+=r/++e,f+=r*(n-o));else{let u=-1;for(let i of t)null!=(i=n(i,++u,t))&&(i=+i)>=i&&(r=i-o,o+=r/++e,f+=r*(i-o))}if(e>1)return f/(e-1)}function p(t,n){const r=d(t,n);return r?Math.sqrt(r):r}function y(t,n){let r,e;if(void 0===n)for(const n of t)null!=n&&(void 0===r?n>=n&&(r=e=n):(r>n&&(r=n),e<n&&(e=n)));else{let o=-1;for(let f of t)null!=(f=n(f,++o,t))&&(void 0===r?f>=f&&(r=e=f):(r>f&&(r=f),e<f&&(e=f)))}return[r,e]}class v{constructor(){this._partials=new Float64Array(32),this._n=0}add(t){const n=this._partials;let r=0;for(let e=0;e<this._n&&e<32;e++){const o=n[e],f=t+o,u=Math.abs(t)<Math.abs(o)?t-(f-o):o-(f-t);u&&(n[r++]=u),t=f}return n[r]=t,this._n=r+1,this}valueOf(){const t=this._partials;let 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// https://d3js.org/d3-array/ v3.1.0 Copyright 2010-2021 Mike Bostock
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2

package.json
{
"name": "d3-array",
"version": "3.0.4",
"version": "3.1.0",
"description": "Array manipulation, ordering, searching, summarizing, etc.",

@@ -5,0 +5,0 @@ "homepage": "https://d3js.org/d3-array/",

172

README.md

@@ -72,3 +72,3 @@ # d3-array

<a name="min" href="#min">#</a> d3.<b>min</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/min.js), [Examples](https://observablehq.com/@d3/d3-extent)
<a name="min" href="#min">#</a> d3.<b>min</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/min.js), [Examples](https://observablehq.com/@d3/d3-extent)

@@ -81,3 +81,3 @@ Returns the minimum value in the given *iterable* using natural order. If the iterable contains no comparable values, returns undefined. An optional *accessor* function may be specified, which is equivalent to calling Array.from before computing the minimum value.

<a name="minIndex" href="#minIndex">#</a> d3.<b>minIndex</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/minIndex.js), [Examples](https://observablehq.com/@d3/d3-extent)
<a name="minIndex" href="#minIndex">#</a> d3.<b>minIndex</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/minIndex.js), [Examples](https://observablehq.com/@d3/d3-extent)

@@ -88,3 +88,3 @@ Returns the index of the minimum value in the given *iterable* using natural order. If the iterable contains no comparable values, returns -1. An optional *accessor* function may be specified, which is equivalent to calling Array.from before computing the minimum value.

<a name="max" href="#max">#</a> d3.<b>max</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/max.js), [Examples](https://observablehq.com/@d3/d3-extent)
<a name="max" href="#max">#</a> d3.<b>max</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/max.js), [Examples](https://observablehq.com/@d3/d3-extent)

@@ -97,3 +97,3 @@ Returns the maximum value in the given *iterable* using natural order. If the iterable contains no comparable values, returns undefined. An optional *accessor* function may be specified, which is equivalent to calling Array.from before computing the maximum value.

<a name="maxIndex" href="#maxIndex">#</a> d3.<b>maxIndex</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/maxIndex.js), [Examples](https://observablehq.com/@d3/d3-extent)
<a name="maxIndex" href="#maxIndex">#</a> d3.<b>maxIndex</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/maxIndex.js), [Examples](https://observablehq.com/@d3/d3-extent)

@@ -104,27 +104,27 @@ Returns the index of the maximum value in the given *iterable* using natural order. If the iterable contains no comparable values, returns -1. An optional *accessor* function may be specified, which is equivalent to calling Array.from before computing the maximum value.

<a name="extent" href="#extent">#</a> d3.<b>extent</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/extent.js), [Examples](https://observablehq.com/@d3/d3-extent)
<a name="extent" href="#extent">#</a> d3.<b>extent</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/extent.js), [Examples](https://observablehq.com/@d3/d3-extent)
Returns the [minimum](#min) and [maximum](#max) value in the given *iterable* using natural order. If the iterable contains no comparable values, returns [undefined, undefined]. An optional *accessor* function may be specified, which is equivalent to calling Array.from before computing the extent.
<a name="mode" href="#mode">#</a> d3.<b>mode</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/mode.js), [Examples](https://observablehq.com/@d3/d3-mode)
<a name="mode" href="#mode">#</a> d3.<b>mode</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/mode.js), [Examples](https://observablehq.com/@d3/d3-mode)
Returns the mode of the given *iterable*, *i.e.* the value which appears the most often. In case of equality, returns the first of the relevant values. If the iterable contains no comparable values, returns undefined. An optional *accessor* function may be specified, which is equivalent to calling Array.from before computing the mode. This method ignores undefined, null and NaN values; this is useful for ignoring missing data.
<a name="sum" href="#sum">#</a> d3.<b>sum</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/sum.js), [Examples](https://observablehq.com/@d3/d3-sum)
<a name="sum" href="#sum">#</a> d3.<b>sum</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/sum.js), [Examples](https://observablehq.com/@d3/d3-sum)
Returns the sum of the given *iterable* of numbers. If the iterable contains no numbers, returns 0. An optional *accessor* function may be specified, which is equivalent to calling Array.from before computing the sum. This method ignores undefined and NaN values; this is useful for ignoring missing data.
<a name="mean" href="#mean">#</a> d3.<b>mean</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/mean.js), [Examples](https://observablehq.com/@d3/d3-mean-d3-median-and-friends)
<a name="mean" href="#mean">#</a> d3.<b>mean</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/mean.js), [Examples](https://observablehq.com/@d3/d3-mean-d3-median-and-friends)
Returns the mean of the given *iterable* of numbers. If the iterable contains no numbers, returns undefined. An optional *accessor* function may be specified, which is equivalent to calling Array.from before computing the mean. This method ignores undefined and NaN values; this is useful for ignoring missing data.
<a name="median" href="#median">#</a> d3.<b>median</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/median.js), [Examples](https://observablehq.com/@d3/d3-mean-d3-median-and-friends)
<a name="median" href="#median">#</a> d3.<b>median</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/median.js), [Examples](https://observablehq.com/@d3/d3-mean-d3-median-and-friends)
Returns the median of the given *iterable* of numbers using the [R-7 method](https://en.wikipedia.org/wiki/Quantile#Estimating_quantiles_from_a_sample). If the iterable contains no numbers, returns undefined. An optional *accessor* function may be specified, which is equivalent to calling Array.from before computing the median. This method ignores undefined and NaN values; this is useful for ignoring missing data.
<a name="cumsum" href="#cumsum">#</a> d3.<b>cumsum</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/cumsum.js), [Examples](https://observablehq.com/@d3/d3-cumsum)
<a name="cumsum" href="#cumsum">#</a> d3.<b>cumsum</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/cumsum.js), [Examples](https://observablehq.com/@d3/d3-cumsum)
Returns the cumulative sum of the given *iterable* of numbers, as a Float64Array of the same length. If the iterable contains no numbers, returns zeros. An optional *accessor* function may be specified, which is equivalent to calling Array.from before computing the cumulative sum. This method ignores undefined and NaN values; this is useful for ignoring missing data.
<a name="quantile" href="#quantile">#</a> d3.<b>quantile</b>(<i>iterable</i>, <i>p</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/quantile.js), [Examples](https://observablehq.com/@d3/d3-mean-d3-median-and-friends)
<a name="quantile" href="#quantile">#</a> d3.<b>quantile</b>(<i>iterable</i>, <i>p</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/quantile.js), [Examples](https://observablehq.com/@d3/d3-mean-d3-median-and-friends)

@@ -145,15 +145,25 @@ Returns the *p*-quantile of the given *iterable* of numbers, where *p* is a number in the range [0, 1]. For example, the median can be computed using *p* = 0.5, the first quartile at *p* = 0.25, and the third quartile at *p* = 0.75. This particular implementation uses the [R-7 method](http://en.wikipedia.org/wiki/Quantile#Quantiles_of_a_population), which is the default for the R programming language and Excel. For example:

<a name="quantileSorted" href="#quantileSorted">#</a> d3.<b>quantileSorted</b>(<i>array</i>, <i>p</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/quantile.js), [Examples](https://observablehq.com/@d3/d3-mean-d3-median-and-friends)
<a name="quantileSorted" href="#quantileSorted">#</a> d3.<b>quantileSorted</b>(<i>array</i>, <i>p</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/quantile.js), [Examples](https://observablehq.com/@d3/d3-mean-d3-median-and-friends)
Similar to *quantile*, but expects the input to be a **sorted** *array* of values. In contrast with *quantile*, the accessor is only called on the elements needed to compute the quantile.
<a name="variance" href="#variance">#</a> d3.<b>variance</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/variance.js), [Examples](https://observablehq.com/@d3/d3-mean-d3-median-and-friends)
<a name="rank" href="#rank">#</a> d3.<b>rank</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/rank.js), [Examp
les](https://observablehq.com/@d3/rank)
Returns an array with the rank of each value in the *iterable*, *i.e.* the index of the value when the iterable is sorted. Nullish values are sorted to the end and ranked NaN. An optional *accessor* function may be specified, which is equivalent to calling *array*.map(*accessor*) before computing the ranks. Ties (equivalent values) all get the same rank, defined as the first time the value is found.
```js
d3.rank([{x: 1}, {}, {x: 2}, {x: 0}], d => d.x); // [1, NaN, 2, 0]
d3.rank(["b", "c", "b", "a"]); // [1, 3, 1, 0]
```
<a name="variance" href="#variance">#</a> d3.<b>variance</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/variance.js), [Examples](https://observablehq.com/@d3/d3-mean-d3-median-and-friends)
Returns an [unbiased estimator of the population variance](http://mathworld.wolfram.com/SampleVariance.html) of the given *iterable* of numbers using [Welford’s algorithm](https://en.wikipedia.org/wiki/Algorithms_for_calculating_variance#Welford's_online_algorithm). If the iterable has fewer than two numbers, returns undefined. An optional *accessor* function may be specified, which is equivalent to calling Array.from before computing the variance. This method ignores undefined and NaN values; this is useful for ignoring missing data.
<a name="deviation" href="#deviation">#</a> d3.<b>deviation</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/deviation.js), [Examples](https://observablehq.com/@d3/d3-mean-d3-median-and-friends)
<a name="deviation" href="#deviation">#</a> d3.<b>deviation</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/deviation.js), [Examples](https://observablehq.com/@d3/d3-mean-d3-median-and-friends)
Returns the standard deviation, defined as the square root of the [bias-corrected variance](#variance), of the given *iterable* of numbers. If the iterable has fewer than two numbers, returns undefined. An optional *accessor* function may be specified, which is equivalent to calling Array.from before computing the standard deviation. This method ignores undefined and NaN values; this is useful for ignoring missing data.
<a name="fsum" href="#fsum">#</a> d3.<b>fsum</b>([<i>values</i>][, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/fsum.js), [Examples](https://observablehq.com/@d3/d3-fsum)
<a name="fsum" href="#fsum">#</a> d3.<b>fsum</b>([<i>values</i>][, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/fsum.js), [Examples](https://observablehq.com/@d3/d3-fsum)

@@ -169,3 +179,3 @@ Returns a full precision summation of the given *values*.

<a name="fcumsum" href="#fcumsum">#</a> d3.<b>fcumsum</b>([<i>values</i>][, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/fsum.js), [Examples](https://observablehq.com/@d3/d3-fcumsum)
<a name="fcumsum" href="#fcumsum">#</a> d3.<b>fcumsum</b>([<i>values</i>][, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/fsum.js), [Examples](https://observablehq.com/@d3/d3-fcumsum)

@@ -197,3 +207,3 @@ Returns a full precision cumulative sum of the given *values*.

<a name="least" href="#least">#</a> d3.<b>least</b>(<i>iterable</i>[, <i>comparator</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/least.js), [Examples](https://observablehq.com/@d3/d3-least)
<a name="least" href="#least">#</a> d3.<b>least</b>(<i>iterable</i>[, <i>comparator</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/least.js), [Examples](https://observablehq.com/@d3/d3-least)
<br><a name="least" href="#least">#</a> d3.<b>least</b>(<i>iterable</i>[, <i>accessor</i>])

@@ -212,3 +222,3 @@

<a name="leastIndex" href="#leastIndex">#</a> d3.<b>leastIndex</b>(<i>iterable</i>[, <i>comparator</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/leastIndex.js), [Examples](https://observablehq.com/@d3/d3-least)
<a name="leastIndex" href="#leastIndex">#</a> d3.<b>leastIndex</b>(<i>iterable</i>[, <i>comparator</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/leastIndex.js), [Examples](https://observablehq.com/@d3/d3-least)
<br><a name="leastIndex" href="#leastIndex">#</a> d3.<b>leastIndex</b>(<i>iterable</i>[, <i>accessor</i>])

@@ -227,3 +237,3 @@

<a name="greatest" href="#greatest">#</a> d3.<b>greatest</b>(<i>iterable</i>[, <i>comparator</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/greatest.js), [Examples](https://observablehq.com/@d3/d3-least)
<a name="greatest" href="#greatest">#</a> d3.<b>greatest</b>(<i>iterable</i>[, <i>comparator</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/greatest.js), [Examples](https://observablehq.com/@d3/d3-least)
<br><a name="greatest" href="#greatest">#</a> d3.<b>greatest</b>(<i>iterable</i>[, <i>accessor</i>])

@@ -242,3 +252,3 @@

<a name="greatestIndex" href="#greatestIndex">#</a> d3.<b>greatestIndex</b>(<i>iterable</i>[, <i>comparator</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/greatestIndex.js), [Examples](https://observablehq.com/@d3/d3-least)
<a name="greatestIndex" href="#greatestIndex">#</a> d3.<b>greatestIndex</b>(<i>iterable</i>[, <i>comparator</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/greatestIndex.js), [Examples](https://observablehq.com/@d3/d3-least)
<br><a name="greatestIndex" href="#greatestIndex">#</a> d3.<b>greatestIndex</b>(<i>iterable</i>[, <i>accessor</i>])

@@ -257,7 +267,7 @@

<a name="bisectLeft" href="#bisectLeft">#</a> d3.<b>bisectLeft</b>(<i>array</i>, <i>x</i>[, <i>lo</i>[, <i>hi</i>]]) · [Source](https://github.com/d3/d3-array/blob/master/src/bisect.js)
<a name="bisectLeft" href="#bisectLeft">#</a> d3.<b>bisectLeft</b>(<i>array</i>, <i>x</i>[, <i>lo</i>[, <i>hi</i>]]) · [Source](https://github.com/d3/d3-array/blob/main/src/bisect.js)
Returns the insertion point for *x* in *array* to maintain sorted order. The arguments *lo* and *hi* may be used to specify a subset of the array which should be considered; by default the entire array is used. If *x* is already present in *array*, the insertion point will be before (to the left of) any existing entries. The return value is suitable for use as the first argument to [splice](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/splice) assuming that *array* is already sorted. The returned insertion point *i* partitions the *array* into two halves so that all *v* < *x* for *v* in *array*.slice(*lo*, *i*) for the left side and all *v* >= *x* for *v* in *array*.slice(*i*, *hi*) for the right side.
<a name="bisect" href="#bisect">#</a> d3.<b>bisect</b>(<i>array</i>, <i>x</i>[, <i>lo</i>[, <i>hi</i>]]) · [Source](https://github.com/d3/d3-array/blob/master/src/bisect.js), [Examples](https://observablehq.com/@d3/d3-bisect)
<a name="bisect" href="#bisect">#</a> d3.<b>bisect</b>(<i>array</i>, <i>x</i>[, <i>lo</i>[, <i>hi</i>]]) · [Source](https://github.com/d3/d3-array/blob/main/src/bisect.js), [Examples](https://observablehq.com/@d3/d3-bisect)
<br><a name="bisectRight" href="#bisectRight">#</a> d3.<b>bisectRight</b>(<i>array</i>, <i>x</i>[, <i>lo</i>[, <i>hi</i>]])

@@ -267,3 +277,3 @@

<a name="bisectCenter" href="#bisectCenter">#</a> d3.<b>bisectCenter</b>(<i>array</i>, <i>x</i>[, <i>lo</i>[, <i>hi</i>]]) · [Source](https://github.com/d3/d3-array/blob/master/src/bisect.js), [Examples](https://observablehq.com/@d3/multi-line-chart)
<a name="bisectCenter" href="#bisectCenter">#</a> d3.<b>bisectCenter</b>(<i>array</i>, <i>x</i>[, <i>lo</i>[, <i>hi</i>]]) · [Source](https://github.com/d3/d3-array/blob/main/src/bisect.js), [Examples](https://observablehq.com/@d3/multi-line-chart)

@@ -274,3 +284,3 @@ Returns the index of the value closest to *x* in the given *array* of numbers. The arguments *lo* (inclusive) and *hi* (exclusive) may be used to specify a subset of the array which should be considered; by default the entire array is used.

<a name="bisector" href="#bisector">#</a> d3.<b>bisector</b>(<i>accessor</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/bisector.js)
<a name="bisector" href="#bisector">#</a> d3.<b>bisector</b>(<i>accessor</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/bisector.js)
<br><a name="bisector" href="#bisector">#</a> d3.<b>bisector</b>(<i>comparator</i>)

@@ -303,19 +313,19 @@

<a name="bisector_left" href="#bisector_left">#</a> <i>bisector</i>.<b>left</b>(<i>array</i>, <i>x</i>[, <i>lo</i>[, <i>hi</i>]]) · [Source](https://github.com/d3/d3-array/blob/master/src/bisector.js)
<a name="bisector_left" href="#bisector_left">#</a> <i>bisector</i>.<b>left</b>(<i>array</i>, <i>x</i>[, <i>lo</i>[, <i>hi</i>]]) · [Source](https://github.com/d3/d3-array/blob/main/src/bisector.js)
Equivalent to [bisectLeft](#bisectLeft), but uses this bisector’s associated comparator.
<a name="bisector_right" href="#bisector_right">#</a> <i>bisector</i>.<b>right</b>(<i>array</i>, <i>x</i>[, <i>lo</i>[, <i>hi</i>]]) · [Source](https://github.com/d3/d3-array/blob/master/src/bisector.js)
<a name="bisector_right" href="#bisector_right">#</a> <i>bisector</i>.<b>right</b>(<i>array</i>, <i>x</i>[, <i>lo</i>[, <i>hi</i>]]) · [Source](https://github.com/d3/d3-array/blob/main/src/bisector.js)
Equivalent to [bisectRight](#bisectRight), but uses this bisector’s associated comparator.
<a name="bisector_center" href="#bisector_center">#</a> <i>bisector</i>.<b>center</b>(<i>array</i>, <i>x</i>[, <i>lo</i>[, <i>hi</i>]]) · [Source](https://github.com/d3/d3-array/blob/master/src/bisector.js)
<a name="bisector_center" href="#bisector_center">#</a> <i>bisector</i>.<b>center</b>(<i>array</i>, <i>x</i>[, <i>lo</i>[, <i>hi</i>]]) · [Source](https://github.com/d3/d3-array/blob/main/src/bisector.js)
Returns the index of the closest value to *x* in the given sorted *array*. This expects that the bisector’s associated accessor returns a quantitative value, or that the bisector’s associated comparator returns a signed distance; otherwise, this method is equivalent to *bisector*.left.
<a name="quickselect" href="#quickselect">#</a> d3.<b>quickselect</b>(<i>array</i>, <i>k</i>, <i>left</i> = 0, <i>right</i> = <i>array</i>.length - 1, <i>compare</i> = ascending) · [Source](https://github.com/d3/d3-array/blob/master/src/quickselect.js), [Examples](https://observablehq.com/@d3/d3-quickselect)
<a name="quickselect" href="#quickselect">#</a> d3.<b>quickselect</b>(<i>array</i>, <i>k</i>, <i>left</i> = 0, <i>right</i> = <i>array</i>.length - 1, <i>compare</i> = ascending) · [Source](https://github.com/d3/d3-array/blob/main/src/quickselect.js), [Examples](https://observablehq.com/@d3/d3-quickselect)
See [mourner/quickselect](https://github.com/mourner/quickselect/blob/master/README.md).
See [mourner/quickselect](https://github.com/mourner/quickselect/blob/main/README.md).
<a name="ascending" href="#ascending">#</a> d3.<b>ascending</b>(<i>a</i>, <i>b</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/ascending.js), [Examples](https://observablehq.com/@d3/d3-ascending)
<a name="ascending" href="#ascending">#</a> d3.<b>ascending</b>(<i>a</i>, <i>b</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/ascending.js), [Examples](https://observablehq.com/@d3/d3-ascending)

@@ -332,3 +342,3 @@ Returns -1 if *a* is less than *b*, or 1 if *a* is greater than *b*, or 0. This is the comparator function for natural order, and can be used in conjunction with the built-in [*array*.sort](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/sort) method to arrange elements in ascending order. It is implemented as:

<a name="descending" href="#descending">#</a> d3.<b>descending</b>(<i>a</i>, <i>b</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/descending.js), [Examples](https://observablehq.com/@d3/d3-ascending)
<a name="descending" href="#descending">#</a> d3.<b>descending</b>(<i>a</i>, <i>b</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/descending.js), [Examples](https://observablehq.com/@d3/d3-ascending)

@@ -349,3 +359,3 @@ Returns -1 if *a* is greater than *b*, or 1 if *a* is less than *b*, or 0. This is the comparator function for reverse natural order, and can be used in conjunction with the built-in array sort method to arrange elements in descending order. It is implemented as:

<a name="group" href="#group">#</a> d3.<b>group</b>(<i>iterable</i>, <i>...keys</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/group.js), [Examples](https://observablehq.com/@d3/d3-group-d3-rollup)
<a name="group" href="#group">#</a> d3.<b>group</b>(<i>iterable</i>, <i>...keys</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/group.js), [Examples](https://observablehq.com/@d3/d3-group-d3-rollup)

@@ -433,13 +443,13 @@ Groups the specified *iterable* of values into an [InternMap](#InternMap) from *key* to array of value. For example, given some data:

[*selection*.data](https://github.com/d3/d3-selection/blob/master/README.md#selection_data) accepts iterables directly, meaning that you can use a Map (or Set or other iterable) to perform a data join without first needing to convert to an array.
[*selection*.data](https://github.com/d3/d3-selection/blob/main/README.md#selection_data) accepts iterables directly, meaning that you can use a Map (or Set or other iterable) to perform a data join without first needing to convert to an array.
<a name="groups" href="#groups">#</a> d3.<b>groups</b>(<i>iterable</i>, <i>...keys</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/group.js), [Examples](https://observablehq.com/@d3/d3-group-d3-rollup)
<a name="groups" href="#groups">#</a> d3.<b>groups</b>(<i>iterable</i>, <i>...keys</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/group.js), [Examples](https://observablehq.com/@d3/d3-group-d3-rollup)
Equivalent to [group](#group), but returns nested arrays instead of nested maps.
<a name="flatGroup" href="#flatGroup">#</a> d3.<b>flatGroup</b>(<i>iterable</i>, <i>...keys</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/group.js), [Examples](https://observablehq.com/@d3/d3-flatgroup)
<a name="flatGroup" href="#flatGroup">#</a> d3.<b>flatGroup</b>(<i>iterable</i>, <i>...keys</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/group.js), [Examples](https://observablehq.com/@d3/d3-flatgroup)
Equivalent to [group](#group), but returns a flat array of [*key0*, *key1*, …, *values*] instead of nested maps.
<a name="index" href="#index">#</a> d3.<b>index</b>(<i>iterable</i>, <i>...keys</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/group.js), [Examples](https://observablehq.com/@d3/d3-group)
<a name="index" href="#index">#</a> d3.<b>index</b>(<i>iterable</i>, <i>...keys</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/group.js), [Examples](https://observablehq.com/@d3/d3-group)

@@ -473,7 +483,7 @@ Equivalent to [group](#group) but returns a unique value per compound key instead of an array, throwing if the key is not unique.

<a name="indexes" href="#indexes">#</a> d3.<b>indexes</b>(<i>iterable</i>, <i>...keys</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/group.js), [Examples](https://observablehq.com/@d3/d3-group)
<a name="indexes" href="#indexes">#</a> d3.<b>indexes</b>(<i>iterable</i>, <i>...keys</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/group.js), [Examples](https://observablehq.com/@d3/d3-group)
Equivalent to [index](#index), but returns nested arrays instead of nested maps.
<a name="rollup" href="#rollup">#</a> d3.<b>rollup</b>(<i>iterable</i>, <i>reduce</i>, <i>...keys</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/group.js), [Examples](https://observablehq.com/@d3/d3-group-d3-rollup)
<a name="rollup" href="#rollup">#</a> d3.<b>rollup</b>(<i>iterable</i>, <i>reduce</i>, <i>...keys</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/group.js), [Examples](https://observablehq.com/@d3/d3-group-d3-rollup)

@@ -531,11 +541,11 @@ [Groups](#group) and reduces the specified *iterable* of values into an InternMap from *key* to value. For example, given some data:

<a name="rollups" href="#rollups">#</a> d3.<b>rollups</b>(<i>iterable</i>, <i>...keys</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/group.js), [Examples](https://observablehq.com/@d3/d3-group-d3-rollup)
<a name="rollups" href="#rollups">#</a> d3.<b>rollups</b>(<i>iterable</i>, <i>...keys</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/group.js), [Examples](https://observablehq.com/@d3/d3-group-d3-rollup)
Equivalent to [rollup](#rollup), but returns nested arrays instead of nested maps.
<a name="flatRollup" href="#flatRollup">#</a> d3.<b>flatRollup</b>(<i>iterable</i>, <i>...keys</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/group.js), [Examples](https://observablehq.com/@d3/d3-flatgroup)
<a name="flatRollup" href="#flatRollup">#</a> d3.<b>flatRollup</b>(<i>iterable</i>, <i>...keys</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/group.js), [Examples](https://observablehq.com/@d3/d3-flatgroup)
Equivalent to [rollup](#rollup), but returns a flat array of [*key0*, *key1*, …, *value*] instead of nested maps.
<a name="groupSort" href="#groupSort">#</a> d3.<b>groupSort</b>(<i>iterable</i>, <i>comparator</i>, <i>key</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/groupSort.js), [Examples](https://observablehq.com/@d3/d3-groupsort)
<a name="groupSort" href="#groupSort">#</a> d3.<b>groupSort</b>(<i>iterable</i>, <i>comparator</i>, <i>key</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/groupSort.js), [Examples](https://observablehq.com/@d3/d3-groupsort)
<br><a name="groupSort" href="#groupSort">#</a> d3.<b>groupSort</b>(<i>iterable</i>, <i>accessor</i>, <i>key</i>)

@@ -557,3 +567,3 @@

<a name="count" href="#count">#</a> d3.<b>count</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/count.js), [Examples](https://observablehq.com/@d3/d3-count)
<a name="count" href="#count">#</a> d3.<b>count</b>(<i>iterable</i>[, <i>accessor</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/count.js), [Examples](https://observablehq.com/@d3/d3-count)

@@ -567,3 +577,3 @@ Returns the number of valid number values (*i.e.*, not null, NaN, or undefined) in the specified *iterable*; accepts an accessor.

```
<a name="cross" href="#cross">#</a> d3.<b>cross</b>(<i>...iterables</i>[, <i>reducer</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/cross.js), [Examples](https://observablehq.com/@d3/d3-cross)
<a name="cross" href="#cross">#</a> d3.<b>cross</b>(<i>...iterables</i>[, <i>reducer</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/cross.js), [Examples](https://observablehq.com/@d3/d3-cross)

@@ -585,3 +595,3 @@ Returns the [Cartesian product](https://en.wikipedia.org/wiki/Cartesian_product) of the specified *iterables*. For example, if two iterables *a* and *b* are specified, for each element *i* in the iterable *a* and each element *j* in the iterable *b*, in order, invokes the specified *reducer* function passing the element *i* and element *j*. If a *reducer* is not specified, it defaults to a function which creates a two-element array for each pair:

<a name="merge" href="#merge">#</a> d3.<b>merge</b>(<i>iterables</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/merge.js), [Examples](https://observablehq.com/@d3/d3-merge)
<a name="merge" href="#merge">#</a> d3.<b>merge</b>(<i>iterables</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/merge.js), [Examples](https://observablehq.com/@d3/d3-merge)

@@ -594,3 +604,3 @@ Merges the specified iterable of *iterables* into a single array. This method is similar to the built-in array concat method; the only difference is that it is more convenient when you have an array of arrays.

<a name="pairs" href="#pairs">#</a> d3.<b>pairs</b>(<i>iterable</i>[, <i>reducer</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/pairs.js), [Examples](https://observablehq.com/@d3/d3-pairs)
<a name="pairs" href="#pairs">#</a> d3.<b>pairs</b>(<i>iterable</i>[, <i>reducer</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/pairs.js), [Examples](https://observablehq.com/@d3/d3-pairs)

@@ -614,3 +624,3 @@ For each adjacent pair of elements in the specified *iterable*, in order, invokes the specified *reducer* function passing the element *i* and element *i* - 1. If a *reducer* is not specified, it defaults to a function which creates a two-element array for each pair:

<a name="permute" href="#permute">#</a> d3.<b>permute</b>(<i>source</i>, <i>keys</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/permute.js), [Examples](https://observablehq.com/@d3/d3-permute)
<a name="permute" href="#permute">#</a> d3.<b>permute</b>(<i>source</i>, <i>keys</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/permute.js), [Examples](https://observablehq.com/@d3/d3-permute)

@@ -634,9 +644,9 @@ Returns a permutation of the specified *source* object (or array) using the specified iterable of *keys*. The returned array contains the corresponding property of the source object for each key in *keys*, in order. For example:

<a name="shuffle" href="#shuffle">#</a> d3.<b>shuffle</b>(<i>array</i>[, <i>start</i>[, <i>stop</i>]]) · [Source](https://github.com/d3/d3-array/blob/master/src/shuffle.js), [Examples](https://observablehq.com/@d3/d3-shuffle)
<a name="shuffle" href="#shuffle">#</a> d3.<b>shuffle</b>(<i>array</i>[, <i>start</i>[, <i>stop</i>]]) · [Source](https://github.com/d3/d3-array/blob/main/src/shuffle.js), [Examples](https://observablehq.com/@d3/d3-shuffle)
Randomizes the order of the specified *array* in-place using the [Fisher–Yates shuffle](https://bost.ocks.org/mike/shuffle/) and returns the *array*. If *start* is specified, it is the starting index (inclusive) of the *array* to shuffle; if *start* is not specified, it defaults to zero. If *stop* is specified, it is the ending index (exclusive) of the *array* to shuffle; if *stop* is not specified, it defaults to *array*.length. For example, to shuffle the first ten elements of the *array*: shuffle(*array*, 0, 10).
<a name="shuffler" href="#shuffler">#</a> d3.<b>shuffler</b>(<i>random</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/shuffle.js)
<a name="shuffler" href="#shuffler">#</a> d3.<b>shuffler</b>(<i>random</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/shuffle.js)
Returns a [shuffle function](#shuffle) given the specified random source. For example, using [d3.randomLcg](https://github.com/d3/d3-random/blob/master/README.md#randomLcg):
Returns a [shuffle function](#shuffle) given the specified random source. For example, using [d3.randomLcg](https://github.com/d3/d3-random/blob/main/README.md#randomLcg):

@@ -650,21 +660,21 @@ ```js

<a name="ticks" href="#ticks">#</a> d3.<b>ticks</b>(<i>start</i>, <i>stop</i>, <i>count</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/ticks.js), [Examples](https://observablehq.com/@d3/d3-ticks)
<a name="ticks" href="#ticks">#</a> d3.<b>ticks</b>(<i>start</i>, <i>stop</i>, <i>count</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/ticks.js), [Examples](https://observablehq.com/@d3/d3-ticks)
Returns an array of approximately *count* + 1 uniformly-spaced, nicely-rounded values between *start* and *stop* (inclusive). Each value is a power of ten multiplied by 1, 2 or 5. See also [d3.tickIncrement](#tickIncrement), [d3.tickStep](#tickStep) and [*linear*.ticks](https://github.com/d3/d3-scale/blob/master/README.md#linear_ticks).
Returns an array of approximately *count* + 1 uniformly-spaced, nicely-rounded values between *start* and *stop* (inclusive). Each value is a power of ten multiplied by 1, 2 or 5. See also [d3.tickIncrement](#tickIncrement), [d3.tickStep](#tickStep) and [*linear*.ticks](https://github.com/d3/d3-scale/blob/main/README.md#linear_ticks).
Ticks are inclusive in the sense that they may include the specified *start* and *stop* values if (and only if) they are exact, nicely-rounded values consistent with the inferred [step](#tickStep). More formally, each returned tick *t* satisfies *start* ≤ *t* and *t* ≤ *stop*.
<a name="tickIncrement" href="#tickIncrement">#</a> d3.<b>tickIncrement</b>(<i>start</i>, <i>stop</i>, <i>count</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/ticks.js), [Examples](https://observablehq.com/@d3/d3-ticks)
<a name="tickIncrement" href="#tickIncrement">#</a> d3.<b>tickIncrement</b>(<i>start</i>, <i>stop</i>, <i>count</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/ticks.js), [Examples](https://observablehq.com/@d3/d3-ticks)
Like [d3.tickStep](#tickStep), except requires that *start* is always less than or equal to *stop*, and if the tick step for the given *start*, *stop* and *count* would be less than one, returns the negative inverse tick step instead. This method is always guaranteed to return an integer, and is used by [d3.ticks](#ticks) to guarantee that the returned tick values are represented as precisely as possible in IEEE 754 floating point.
<a name="tickStep" href="#tickStep">#</a> d3.<b>tickStep</b>(<i>start</i>, <i>stop</i>, <i>count</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/ticks.js), [Examples](https://observablehq.com/@d3/d3-ticks)
<a name="tickStep" href="#tickStep">#</a> d3.<b>tickStep</b>(<i>start</i>, <i>stop</i>, <i>count</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/ticks.js), [Examples](https://observablehq.com/@d3/d3-ticks)
Returns the difference between adjacent tick values if the same arguments were passed to [d3.ticks](#ticks): a nicely-rounded value that is a power of ten multiplied by 1, 2 or 5. Note that due to the limited precision of IEEE 754 floating point, the returned value may not be exact decimals; use [d3-format](https://github.com/d3/d3-format) to format numbers for human consumption.
<a name="nice" href="#nice">#</a> d3.<b>nice</b>(<i>start</i>, <i>stop</i>, <i>count</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/nice.js)
<a name="nice" href="#nice">#</a> d3.<b>nice</b>(<i>start</i>, <i>stop</i>, <i>count</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/nice.js)
Returns a new interval [*niceStart*, *niceStop*] covering the given interval [*start*, *stop*] and where *niceStart* and *niceStop* are guaranteed to align with the corresponding [tick step](#tickStep). Like [d3.tickIncrement](#tickIncrement), this requires that *start* is less than or equal to *stop*.
<a name="range" href="#range">#</a> d3.<b>range</b>([<i>start</i>, ]<i>stop</i>[, <i>step</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/range.js), [Examples](https://observablehq.com/@d3/d3-range)
<a name="range" href="#range">#</a> d3.<b>range</b>([<i>start</i>, ]<i>stop</i>[, <i>step</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/range.js), [Examples](https://observablehq.com/@d3/d3-range)

@@ -681,3 +691,3 @@ Returns an array containing an arithmetic progression, similar to the Python built-in [range](http://docs.python.org/library/functions.html#range). This method is often used to iterate over a sequence of uniformly-spaced numeric values, such as the indexes of an array or the ticks of a linear scale. (See also [d3.ticks](#ticks) for nicely-rounded values.)

This unexpected behavior is due to IEEE 754 double-precision floating point, which defines 0.2 * 3 = 0.6000000000000001. Use [d3-format](https://github.com/d3/d3-format) to format numbers for human consumption with appropriate rounding; see also [linear.tickFormat](https://github.com/d3/d3-scale/blob/master/README.md#linear_tickFormat) in [d3-scale](https://github.com/d3/d3-scale).
This unexpected behavior is due to IEEE 754 double-precision floating point, which defines 0.2 * 3 = 0.6000000000000001. Use [d3-format](https://github.com/d3/d3-format) to format numbers for human consumption with appropriate rounding; see also [linear.tickFormat](https://github.com/d3/d3-scale/blob/main/README.md#linear_tickFormat) in [d3-scale](https://github.com/d3/d3-scale).

@@ -691,7 +701,7 @@ Likewise, if the returned array should have a specific length, consider using [array.map](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/map) on an integer range. For example:

<a name="transpose" href="#transpose">#</a> d3.<b>transpose</b>(<i>matrix</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/transpose.js), [Examples](https://observablehq.com/@d3/d3-transpose)
<a name="transpose" href="#transpose">#</a> d3.<b>transpose</b>(<i>matrix</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/transpose.js), [Examples](https://observablehq.com/@d3/d3-transpose)
Uses the [zip](#zip) operator as a two-dimensional [matrix transpose](http://en.wikipedia.org/wiki/Transpose).
<a name="zip" href="#zip">#</a> d3.<b>zip</b>(<i>arrays…</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/zip.js), [Examples](https://observablehq.com/@d3/d3-transpose)
<a name="zip" href="#zip">#</a> d3.<b>zip</b>(<i>arrays…</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/zip.js), [Examples](https://observablehq.com/@d3/d3-transpose)

@@ -708,3 +718,3 @@ Returns an array of arrays, where the *i*th array contains the *i*th element from each of the argument *arrays*. The returned array is truncated in length to the shortest array in *arrays*. If *arrays* contains only a single array, the returned array contains one-element arrays. With no arguments, the returned array is empty.

<a name="every" href="#every">#</a> d3.<b>every</b>(<i>iterable</i>, <i>test</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/every.js)
<a name="every" href="#every">#</a> d3.<b>every</b>(<i>iterable</i>, <i>test</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/every.js)

@@ -717,3 +727,3 @@ Returns true if the given *test* function returns true for every value in the given *iterable*. This method returns as soon as *test* returns a non-truthy value or all values are iterated over. Equivalent to [*array*.every](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/every):

<a name="some" href="#some">#</a> d3.<b>some</b>(<i>iterable</i>, <i>test</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/some.js)
<a name="some" href="#some">#</a> d3.<b>some</b>(<i>iterable</i>, <i>test</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/some.js)

@@ -726,3 +736,3 @@ Returns true if the given *test* function returns true for any value in the given *iterable*. This method returns as soon as *test* returns a truthy value or all values are iterated over. Equivalent to [*array*.some](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/some):

<a name="filter" href="#filter">#</a> d3.<b>filter</b>(<i>iterable</i>, <i>test</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/filter.js)
<a name="filter" href="#filter">#</a> d3.<b>filter</b>(<i>iterable</i>, <i>test</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/filter.js)

@@ -735,3 +745,3 @@ Returns a new array containing the values from *iterable*, in order, for which the given *test* function returns true. Equivalent to [*array*.filter](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter):

<a name="map" href="#map">#</a> d3.<b>map</b>(<i>iterable</i>, <i>mapper</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/map.js)
<a name="map" href="#map">#</a> d3.<b>map</b>(<i>iterable</i>, <i>mapper</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/map.js)

@@ -744,3 +754,3 @@ Returns a new array containing the mapped values from *iterable*, in order, as defined by given *mapper* function. Equivalent to [*array*.map](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map) and [Array.from](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/from):

<a name="reduce" href="#reduce">#</a> d3.<b>reduce</b>(<i>iterable</i>, <i>reducer</i>[, <i>initialValue</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/reduce.js)
<a name="reduce" href="#reduce">#</a> d3.<b>reduce</b>(<i>iterable</i>, <i>reducer</i>[, <i>initialValue</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/reduce.js)

@@ -753,3 +763,3 @@ Returns the reduced value defined by given *reducer* function, which is repeatedly invoked for each value in *iterable*, being passed the current reduced value and the next value. Equivalent to [*array*.reduce](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reduce):

<a name="reverse" href="#reverse">#</a> d3.<b>reverse</b>(<i>iterable</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/reverse.js)
<a name="reverse" href="#reverse">#</a> d3.<b>reverse</b>(<i>iterable</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/reverse.js)

@@ -762,3 +772,3 @@ Returns an array containing the values in the given *iterable* in reverse order. Equivalent to [*array*.reverse](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reverse), except that it does not mutate the given *iterable*:

<a name="sort" href="#sort">#</a> d3.<b>sort</b>(<i>iterable</i>, <i>comparator</i> = d3.ascending) · [Source](https://github.com/d3/d3-array/blob/master/src/sort.js)
<a name="sort" href="#sort">#</a> d3.<b>sort</b>(<i>iterable</i>, <i>comparator</i> = d3.ascending) · [Source](https://github.com/d3/d3-array/blob/main/src/sort.js)
<br><a name="sort" href="#sort">#</a> d3.<b>sort</b>(<i>iterable</i>, ...<i>accessors</i>)

@@ -802,3 +812,3 @@

<a name="difference" href="#difference">#</a> d3.<b>difference</b>(<i>iterable</i>, ...<i>others</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/difference.js)
<a name="difference" href="#difference">#</a> d3.<b>difference</b>(<i>iterable</i>, ...<i>others</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/difference.js)

@@ -811,3 +821,3 @@ Returns a new InternSet containing every value in *iterable* that is not in any of the *others* iterables.

<a name="union" href="#union">#</a> d3.<b>union</b>(...<i>iterables</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/union.js)
<a name="union" href="#union">#</a> d3.<b>union</b>(...<i>iterables</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/union.js)

@@ -820,3 +830,3 @@ Returns a new InternSet containing every (distinct) value that appears in any of the given *iterables*. The order of values in the returned set is based on their first occurrence in the given *iterables*.

<a name="intersection" href="#intersection">#</a> d3.<b>intersection</b>(...<i>iterables</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/intersection.js)
<a name="intersection" href="#intersection">#</a> d3.<b>intersection</b>(...<i>iterables</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/intersection.js)

@@ -829,3 +839,3 @@ Returns a new InternSet containing every (distinct) value that appears in all of the given *iterables*. The order of values in the returned set is based on their first occurrence in the given *iterables*.

<a name="superset" href="#superset">#</a> d3.<b>superset</b>(<i>a</i>, <i>b</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/superset.js)
<a name="superset" href="#superset">#</a> d3.<b>superset</b>(<i>a</i>, <i>b</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/superset.js)

@@ -838,3 +848,3 @@ Returns true if *a* is a superset of *b*: if every value in the given iterable *b* is also in the given iterable *a*.

<a name="subset" href="#subset">#</a> d3.<b>subset</b>(<i>a</i>, <i>b</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/subset.js)
<a name="subset" href="#subset">#</a> d3.<b>subset</b>(<i>a</i>, <i>b</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/subset.js)

@@ -847,3 +857,3 @@ Returns true if *a* is a subset of *b*: if every value in the given iterable *a* is also in the given iterable *b*.

<a name="disjoint" href="#disjoint">#</a> d3.<b>disjoint</b>(<i>a</i>, <i>b</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/disjoint.js)
<a name="disjoint" href="#disjoint">#</a> d3.<b>disjoint</b>(<i>a</i>, <i>b</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/disjoint.js)

@@ -858,11 +868,11 @@ Returns true if *a* and *b* are disjoint: if *a* and *b* contain no shared value.

[<img src="https://raw.githubusercontent.com/d3/d3-array/master/img/histogram.png" width="480" height="250" alt="Histogram">](http://bl.ocks.org/mbostock/3048450)
[<img src="https://raw.githubusercontent.com/d3/d3-array/main/img/histogram.png" width="480" height="250" alt="Histogram">](http://bl.ocks.org/mbostock/3048450)
Binning groups discrete samples into a smaller number of consecutive, non-overlapping intervals. They are often used to visualize the distribution of numerical data as histograms.
<a name="bin" href="#bin">#</a> d3.<b>bin</b>() · [Source](https://github.com/d3/d3-array/blob/master/src/bin.js), [Examples](https://observablehq.com/@d3/d3-bin)
<a name="bin" href="#bin">#</a> d3.<b>bin</b>() · [Source](https://github.com/d3/d3-array/blob/main/src/bin.js), [Examples](https://observablehq.com/@d3/d3-bin)
Constructs a new bin generator with the default settings.
<a name="_bin" href="#_bin">#</a> <i>bin</i>(<i>data</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/bin.js), [Examples](https://observablehq.com/@d3/d3-bin)
<a name="_bin" href="#_bin">#</a> <i>bin</i>(<i>data</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/bin.js), [Examples](https://observablehq.com/@d3/d3-bin)

@@ -876,3 +886,3 @@ Bins the given iterable of *data* samples. Returns an array of bins, where each bin is an array containing the associated elements from the input *data*. Thus, the `length` of the bin is the number of elements in that bin. Each bin has two additional attributes:

<a name="bin_value" href="#bin_value">#</a> <i>bin</i>.<b>value</b>([<i>value</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/bin.js), [Examples](https://observablehq.com/@d3/d3-bin)
<a name="bin_value" href="#bin_value">#</a> <i>bin</i>.<b>value</b>([<i>value</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/bin.js), [Examples](https://observablehq.com/@d3/d3-bin)

@@ -885,7 +895,7 @@ If *value* is specified, sets the value accessor to the specified function or constant and returns this bin generator. If *value* is not specified, returns the current value accessor, which defaults to the identity function.

<a name="bin_domain" href="#bin_domain">#</a> <i>bin</i>.<b>domain</b>([<i>domain</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/bin.js), [Examples](https://observablehq.com/@d3/d3-bin)
<a name="bin_domain" href="#bin_domain">#</a> <i>bin</i>.<b>domain</b>([<i>domain</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/bin.js), [Examples](https://observablehq.com/@d3/d3-bin)
If *domain* is specified, sets the domain accessor to the specified function or array and returns this bin generator. If *domain* is not specified, returns the current domain accessor, which defaults to [extent](#extent). The bin domain is defined as an array [*min*, *max*], where *min* is the minimum observable value and *max* is the maximum observable value; both values are inclusive. Any value outside of this domain will be ignored when the bins are [generated](#_bin).
For example, if you are using the bin generator in conjunction with a [linear scale](https://github.com/d3/d3-scale/blob/master/README.md#linear-scales) `x`, you might say:
For example, if you are using the bin generator in conjunction with a [linear scale](https://github.com/d3/d3-scale/blob/main/README.md#linear-scales) `x`, you might say:

@@ -908,3 +918,3 @@ ```js

<a name="bin_thresholds" href="#bin_thresholds">#</a> <i>bin</i>.<b>thresholds</b>([<i>count</i>]) · [Source](https://github.com/d3/d3-array/blob/master/src/bin.js), [Examples](https://observablehq.com/@d3/d3-bin)
<a name="bin_thresholds" href="#bin_thresholds">#</a> <i>bin</i>.<b>thresholds</b>([<i>count</i>]) · [Source](https://github.com/d3/d3-array/blob/main/src/bin.js), [Examples](https://observablehq.com/@d3/d3-bin)
<br><a name="bin_thresholds" href="#bin_thresholds">#</a> <i>bin</i>.<b>thresholds</b>([<i>thresholds</i>])

@@ -922,11 +932,11 @@

<a name="thresholdFreedmanDiaconis" href="#thresholdFreedmanDiaconis">#</a> d3.<b>thresholdFreedmanDiaconis</b>(<i>values</i>, <i>min</i>, <i>max</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/threshold/freedmanDiaconis.js), [Examples](https://observablehq.com/@d3/d3-bin)
<a name="thresholdFreedmanDiaconis" href="#thresholdFreedmanDiaconis">#</a> d3.<b>thresholdFreedmanDiaconis</b>(<i>values</i>, <i>min</i>, <i>max</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/threshold/freedmanDiaconis.js), [Examples](https://observablehq.com/@d3/d3-bin)
Returns the number of bins according to the [Freedman–Diaconis rule](https://en.wikipedia.org/wiki/Histogram#Mathematical_definition); the input *values* must be numbers.
<a name="thresholdScott" href="#thresholdScott">#</a> d3.<b>thresholdScott</b>(<i>values</i>, <i>min</i>, <i>max</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/threshold/scott.js), [Examples](https://observablehq.com/@d3/d3-bin)
<a name="thresholdScott" href="#thresholdScott">#</a> d3.<b>thresholdScott</b>(<i>values</i>, <i>min</i>, <i>max</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/threshold/scott.js), [Examples](https://observablehq.com/@d3/d3-bin)
Returns the number of bins according to [Scott’s normal reference rule](https://en.wikipedia.org/wiki/Histogram#Mathematical_definition); the input *values* must be numbers.
<a name="thresholdSturges" href="#thresholdSturges">#</a> d3.<b>thresholdSturges</b>(<i>values</i>) · [Source](https://github.com/d3/d3-array/blob/master/src/threshold/sturges.js), [Examples](https://observablehq.com/@d3/d3-bin)
<a name="thresholdSturges" href="#thresholdSturges">#</a> d3.<b>thresholdSturges</b>(<i>values</i>) · [Source](https://github.com/d3/d3-array/blob/main/src/threshold/sturges.js), [Examples](https://observablehq.com/@d3/d3-bin)

@@ -933,0 +943,0 @@ Returns the number of bins according to [Sturges’ formula](https://en.wikipedia.org/wiki/Histogram#Mathematical_definition); the input *values* must be numbers.

1

src/index.js

@@ -31,2 +31,3 @@ export {default as bisect, bisectRight, bisectLeft, bisectCenter} from "./bisect.js";

export {default as range} from "./range.js";
export {default as rank} from "./rank.js";
export {default as least} from "./least.js";

@@ -33,0 +34,0 @@ export {default as leastIndex} from "./leastIndex.js";

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