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@visactor/vgrammar-util

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@visactor/vgrammar-util - npm Package Compare versions

Comparing version 0.2.1 to 0.3.0

4

cjs/error.js

@@ -7,4 +7,4 @@ "use strict";

const error = message => {
if (__DEV__) throw Error(message);
const logger_1 = require("./logger"), error = message => {
(0, logger_1.getLogger)().error(message);
};

@@ -11,0 +11,0 @@

2

cjs/logger.js

@@ -43,3 +43,3 @@ "use strict";

var _a;
return (this._level >= LoggerLevel.Error || __DEV__) && log(null !== (_a = this._method) && void 0 !== _a ? _a : "error", "ERROR", args),
return this._level >= LoggerLevel.Error && log(null !== (_a = this._method) && void 0 !== _a ? _a : "error", "ERROR", args),
this;

@@ -46,0 +46,0 @@ }

887

dist/index.js

@@ -1,1 +0,886 @@

!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?t(exports):"function"==typeof define&&define.amd?define(["exports"],t):t(((e="undefined"!=typeof globalThis?globalThis:e||self).VGrammar=e.VGrammar||{},e.VGrammar.Util={}))}(this,(function(e){"use strict";!function(e){var t=Object.prototype.hasOwnProperty,n="~";function r(){}function o(e,t,n){this.fn=e,this.context=t,this.once=n||!1}function s(e,t,r,s,i){if("function"!=typeof r)throw new TypeError("The listener must be a function");var c=new o(r,s||e,i),u=n?n+t:t;return e._events[u]?e._events[u].fn?e._events[u]=[e._events[u],c]:e._events[u].push(c):(e._events[u]=c,e._eventsCount++),e}function i(e,t){0==--e._eventsCount?e._events=new r:delete e._events[t]}function c(){this._events=new r,this._eventsCount=0}Object.create&&(r.prototype=Object.create(null),(new r).__proto__||(n=!1)),c.prototype.eventNames=function(){var e,r,o=[];if(0===this._eventsCount)return o;for(r in e=this._events)t.call(e,r)&&o.push(n?r.slice(1):r);return Object.getOwnPropertySymbols?o.concat(Object.getOwnPropertySymbols(e)):o},c.prototype.listeners=function(e){var t=n?n+e:e,r=this._events[t];if(!r)return[];if(r.fn)return[r.fn];for(var o=0,s=r.length,i=new Array(s);o<s;o++)i[o]=r[o].fn;return i},c.prototype.listenerCount=function(e){var t=n?n+e:e,r=this._events[t];return r?r.fn?1:r.length:0},c.prototype.emit=function(e,t,r,o,s,i){var c=n?n+e:e;if(!this._events[c])return!1;var u,l,f=this._events[c],a=arguments.length;if(f.fn){switch(f.once&&this.removeListener(e,f.fn,void 0,!0),a){case 1:return f.fn.call(f.context),!0;case 2:return f.fn.call(f.context,t),!0;case 3:return f.fn.call(f.context,t,r),!0;case 4:return f.fn.call(f.context,t,r,o),!0;case 5:return f.fn.call(f.context,t,r,o,s),!0;case 6:return f.fn.call(f.context,t,r,o,s,i),!0}for(l=1,u=new Array(a-1);l<a;l++)u[l-1]=arguments[l];f.fn.apply(f.context,u)}else{var 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r=0,o=0,s=0,i=0,c=0;F(e,t,n,((e,t)=>{++c,r+=(e-r)/c,o+=(t-o)/c,s+=(e*t-s)/c,i+=(e*e-i)/c}));const u=function(e,t,n,r){const o=r-e*e,s=Math.abs(o)<1e-24?0:(n-e*t)/o;return[t-s*e,s]}(r,o,s,i),l=e=>u[0]+u[1]*e;return{coef:u,predict:l,rSquared:G(e,t,n,o,l)}},e.setLogLevel=e=>{L?L.level(e):L=new j(e)},e.setLogger=e=>{L=e},e.splitAccessPath=g,e.toPercent=(e,t)=>r(e)?t:Math.min(c(e)?t*parseFloat(e)/100:e,t),e.truthy=N,e.vGrammarConstants=B,e.writeConfig=k,e.zero=b}));
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
typeof define === 'function' && define.amd ? define(['exports'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory((global.VGrammar = global.VGrammar || {}, global.VGrammar.Util = {})));
})(this, (function (exports) { 'use strict';
var eventemitter3 = {exports: {}};
(function (module) {
var has = Object.prototype.hasOwnProperty,
prefix = '~';
/**
* Constructor to create a storage for our `EE` objects.
* An `Events` instance is a plain object whose properties are event names.
*
* @constructor
* @private
*/
function Events() {}
//
// We try to not inherit from `Object.prototype`. In some engines creating an
// instance in this way is faster than calling `Object.create(null)` directly.
// If `Object.create(null)` is not supported we prefix the event names with a
// character to make sure that the built-in object properties are not
// overridden or used as an attack vector.
//
if (Object.create) {
Events.prototype = Object.create(null);
//
// This hack is needed because the `__proto__` property is still inherited in
// some old browsers like Android 4, iPhone 5.1, Opera 11 and Safari 5.
//
if (!new Events().__proto__) prefix = false;
}
/**
* Representation of a single event listener.
*
* @param {Function} fn The listener function.
* @param {*} context The context to invoke the listener with.
* @param {Boolean} [once=false] Specify if the listener is a one-time listener.
* @constructor
* @private
*/
function EE(fn, context, once) {
this.fn = fn;
this.context = context;
this.once = once || false;
}
/**
* Add a listener for a given event.
*
* @param {EventEmitter} emitter Reference to the `EventEmitter` instance.
* @param {(String|Symbol)} event The event name.
* @param {Function} fn The listener function.
* @param {*} context The context to invoke the listener with.
* @param {Boolean} once Specify if the listener is a one-time listener.
* @returns {EventEmitter}
* @private
*/
function addListener(emitter, event, fn, context, once) {
if (typeof fn !== 'function') {
throw new TypeError('The listener must be a function');
}
var listener = new EE(fn, context || emitter, once),
evt = prefix ? prefix + event : event;
if (!emitter._events[evt]) emitter._events[evt] = listener, emitter._eventsCount++;else if (!emitter._events[evt].fn) emitter._events[evt].push(listener);else emitter._events[evt] = [emitter._events[evt], listener];
return emitter;
}
/**
* Clear event by name.
*
* @param {EventEmitter} emitter Reference to the `EventEmitter` instance.
* @param {(String|Symbol)} evt The Event name.
* @private
*/
function clearEvent(emitter, evt) {
if (--emitter._eventsCount === 0) emitter._events = new Events();else delete emitter._events[evt];
}
/**
* Minimal `EventEmitter` interface that is molded against the Node.js
* `EventEmitter` interface.
*
* @constructor
* @public
*/
function EventEmitter() {
this._events = new Events();
this._eventsCount = 0;
}
/**
* Return an array listing the events for which the emitter has registered
* listeners.
*
* @returns {Array}
* @public
*/
EventEmitter.prototype.eventNames = function eventNames() {
var names = [],
events,
name;
if (this._eventsCount === 0) return names;
for (name in events = this._events) {
if (has.call(events, name)) names.push(prefix ? name.slice(1) : name);
}
if (Object.getOwnPropertySymbols) {
return names.concat(Object.getOwnPropertySymbols(events));
}
return names;
};
/**
* Return the listeners registered for a given event.
*
* @param {(String|Symbol)} event The event name.
* @returns {Array} The registered listeners.
* @public
*/
EventEmitter.prototype.listeners = function listeners(event) {
var evt = prefix ? prefix + event : event,
handlers = this._events[evt];
if (!handlers) return [];
if (handlers.fn) return [handlers.fn];
for (var i = 0, l = handlers.length, ee = new Array(l); i < l; i++) {
ee[i] = handlers[i].fn;
}
return ee;
};
/**
* Return the number of listeners listening to a given event.
*
* @param {(String|Symbol)} event The event name.
* @returns {Number} The number of listeners.
* @public
*/
EventEmitter.prototype.listenerCount = function listenerCount(event) {
var evt = prefix ? prefix + event : event,
listeners = this._events[evt];
if (!listeners) return 0;
if (listeners.fn) return 1;
return listeners.length;
};
/**
* Calls each of the listeners registered for a given event.
*
* @param {(String|Symbol)} event The event name.
* @returns {Boolean} `true` if the event had listeners, else `false`.
* @public
*/
EventEmitter.prototype.emit = function emit(event, a1, a2, a3, a4, a5) {
var evt = prefix ? prefix + event : event;
if (!this._events[evt]) return false;
var listeners = this._events[evt],
len = arguments.length,
args,
i;
if (listeners.fn) {
if (listeners.once) this.removeListener(event, listeners.fn, undefined, true);
switch (len) {
case 1:
return listeners.fn.call(listeners.context), true;
case 2:
return listeners.fn.call(listeners.context, a1), true;
case 3:
return listeners.fn.call(listeners.context, a1, a2), true;
case 4:
return listeners.fn.call(listeners.context, a1, a2, a3), true;
case 5:
return listeners.fn.call(listeners.context, a1, a2, a3, a4), true;
case 6:
return listeners.fn.call(listeners.context, a1, a2, a3, a4, a5), true;
}
for (i = 1, args = new Array(len - 1); i < len; i++) {
args[i - 1] = arguments[i];
}
listeners.fn.apply(listeners.context, args);
} else {
var length = listeners.length,
j;
for (i = 0; i < length; i++) {
if (listeners[i].once) this.removeListener(event, listeners[i].fn, undefined, true);
switch (len) {
case 1:
listeners[i].fn.call(listeners[i].context);
break;
case 2:
listeners[i].fn.call(listeners[i].context, a1);
break;
case 3:
listeners[i].fn.call(listeners[i].context, a1, a2);
break;
case 4:
listeners[i].fn.call(listeners[i].context, a1, a2, a3);
break;
default:
if (!args) for (j = 1, args = new Array(len - 1); j < len; j++) {
args[j - 1] = arguments[j];
}
listeners[i].fn.apply(listeners[i].context, args);
}
}
}
return true;
};
/**
* Add a listener for a given event.
*
* @param {(String|Symbol)} event The event name.
* @param {Function} fn The listener function.
* @param {*} [context=this] The context to invoke the listener with.
* @returns {EventEmitter} `this`.
* @public
*/
EventEmitter.prototype.on = function on(event, fn, context) {
return addListener(this, event, fn, context, false);
};
/**
* Add a one-time listener for a given event.
*
* @param {(String|Symbol)} event The event name.
* @param {Function} fn The listener function.
* @param {*} [context=this] The context to invoke the listener with.
* @returns {EventEmitter} `this`.
* @public
*/
EventEmitter.prototype.once = function once(event, fn, context) {
return addListener(this, event, fn, context, true);
};
/**
* Remove the listeners of a given event.
*
* @param {(String|Symbol)} event The event name.
* @param {Function} fn Only remove the listeners that match this function.
* @param {*} context Only remove the listeners that have this context.
* @param {Boolean} once Only remove one-time listeners.
* @returns {EventEmitter} `this`.
* @public
*/
EventEmitter.prototype.removeListener = function removeListener(event, fn, context, once) {
var evt = prefix ? prefix + event : event;
if (!this._events[evt]) return this;
if (!fn) {
clearEvent(this, evt);
return this;
}
var listeners = this._events[evt];
if (listeners.fn) {
if (listeners.fn === fn && (!once || listeners.once) && (!context || listeners.context === context)) {
clearEvent(this, evt);
}
} else {
for (var i = 0, events = [], length = listeners.length; i < length; i++) {
if (listeners[i].fn !== fn || once && !listeners[i].once || context && listeners[i].context !== context) {
events.push(listeners[i]);
}
}
//
// Reset the array, or remove it completely if we have no more listeners.
//
if (events.length) this._events[evt] = events.length === 1 ? events[0] : events;else clearEvent(this, evt);
}
return this;
};
/**
* Remove all listeners, or those of the specified event.
*
* @param {(String|Symbol)} [event] The event name.
* @returns {EventEmitter} `this`.
* @public
*/
EventEmitter.prototype.removeAllListeners = function removeAllListeners(event) {
var evt;
if (event) {
evt = prefix ? prefix + event : event;
if (this._events[evt]) clearEvent(this, evt);
} else {
this._events = new Events();
this._eventsCount = 0;
}
return this;
};
//
// Alias methods names because people roll like that.
//
EventEmitter.prototype.off = EventEmitter.prototype.removeListener;
EventEmitter.prototype.addListener = EventEmitter.prototype.on;
//
// Expose the prefix.
//
EventEmitter.prefixed = prefix;
//
// Allow `EventEmitter` to be imported as module namespace.
//
EventEmitter.EventEmitter = EventEmitter;
//
// Expose the module.
//
{
module.exports = EventEmitter;
}
})(eventemitter3);
var isType = function isType(value, type) {
return toString.call(value) === "[object ".concat(type, "]");
};
var isFunction = function isFunction(value) {
return "function" == typeof value;
};
var isNil = function isNil(value) {
return null == value;
};
var isValid = function isValid(value) {
return null != value;
};
function _typeof(obj) {
"@babel/helpers - typeof";
return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) {
return typeof obj;
} : function (obj) {
return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
}, _typeof(obj);
}
var isObject = function isObject(value) {
var type = _typeof(value);
return null !== value && "object" === type || "function" === type;
};
var isObjectLike = function isObjectLike(value) {
return "object" == _typeof(value) && null !== value;
};
var isString = function isString(value) {
var fuzzy = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : !1;
var type = _typeof(value);
return fuzzy ? "string" === type : "string" === type || isType(value, "String");
};
var isArray = function isArray(value) {
return Array.isArray ? Array.isArray(value) : isType(value, "Array");
};
var isNumber = function isNumber(value) {
var fuzzy = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : !1;
var type = _typeof(value);
return fuzzy ? "number" === type : "number" === type || isType(value, "Number");
};
var get = function get(obj, path, defaultValue) {
var paths = isString(path) ? path.split(".") : path;
for (var p = 0; p < paths.length; p++) obj = obj ? obj[paths[p]] : void 0;
return void 0 === obj ? defaultValue : obj;
};
function array(arr) {
return isValid(arr) ? isArray(arr) ? arr : [arr] : [];
}
var hasRaf = !1;
try {
hasRaf = "function" == typeof requestAnimationFrame && "function" == typeof cancelAnimationFrame;
} catch (err) {
hasRaf = !1;
}
hasRaf = !1;
var InnerBBox;
!function (InnerBBox) {
InnerBBox[InnerBBox.NONE = 0] = "NONE", InnerBBox[InnerBBox.BBOX1 = 1] = "BBOX1", InnerBBox[InnerBBox.BBOX2 = 2] = "BBOX2";
}(InnerBBox || (InnerBBox = {}));
const accessor = (fn, fields, name) => {
fn.fields = fields || [];
fn.fname = name;
return fn;
};
function accessorName(fn) {
return isNil(fn) ? null : fn.fname;
}
function accessorFields(fn) {
return isNil(fn) ? null : fn.fields;
}
const getter = (path) => {
return (obj) => get(obj, path);
};
function log(method, level, input) {
const args = [level].concat([].slice.call(input));
console[method].apply(console, args);
}
var LoggerLevel;
(function (LoggerLevel) {
LoggerLevel[LoggerLevel["None"] = 0] = "None";
LoggerLevel[LoggerLevel["Error"] = 1] = "Error";
LoggerLevel[LoggerLevel["Warn"] = 2] = "Warn";
LoggerLevel[LoggerLevel["Info"] = 3] = "Info";
LoggerLevel[LoggerLevel["Debug"] = 4] = "Debug";
})(LoggerLevel || (LoggerLevel = {}));
class Logger {
_level;
_method;
constructor(level = LoggerLevel.None, method) {
this._level = level;
this._method = method;
}
canLogInfo() {
return this._level >= LoggerLevel.Info;
}
canLogDebug() {
return this._level >= LoggerLevel.Debug;
}
canLogError() {
return this._level >= LoggerLevel.Error;
}
canLogWarn() {
return this._level >= LoggerLevel.Error;
}
level(levelValue) {
if (arguments.length) {
this._level = +levelValue;
return this;
}
return this._level;
}
error(...args) {
if (this._level >= LoggerLevel.Error) {
log(this._method ?? 'error', 'ERROR', args);
}
return this;
}
warn(...args) {
if (this._level >= LoggerLevel.Warn) {
log(this._method || 'warn', 'WARN', args);
}
return this;
}
info(...args) {
if (this._level >= LoggerLevel.Info) {
log(this._method || 'log', 'INFO', args);
}
return this;
}
debug(...args) {
if (this._level >= LoggerLevel.Debug) {
log(this._method || 'log', 'DEBUG', args);
}
return this;
}
}
let defaultLogger = null;
const setLogger = (logger) => {
defaultLogger = logger;
};
const setLogLevel = (level) => {
if (defaultLogger) {
defaultLogger.level(level);
}
else {
defaultLogger = new Logger(level);
}
};
const clearLogger = () => {
defaultLogger = null;
};
const getLogger = (level, method) => {
if (defaultLogger && isNumber(level)) {
defaultLogger.level(level);
}
else if (!defaultLogger) {
defaultLogger = new Logger(level, method);
}
return defaultLogger;
};
const error = (message) => {
const logger = getLogger();
logger.error(message);
};
const splitAccessPath = (p) => {
const path = [];
const n = p.length;
let q = null;
let b = 0;
let s = '';
let i;
let j;
let c;
p += '';
const push = () => {
path.push(s + p.substring(i, j));
s = '';
i = j + 1;
};
for (i = 0, j = 0; j < n; j += 1) {
c = p[j];
if (c === '\\') {
s += p.substring(i, j);
s += p.substring(++j, ++j);
i = j;
}
else if (c === q) {
push();
q = null;
b = -1;
}
else if (q) {
continue;
}
else if (i === b && c === '"') {
i = j + 1;
q = c;
}
else if (i === b && c === "'") {
i = j + 1;
q = c;
}
else if (c === '.' && !b) {
if (j > i) {
push();
}
else {
i = j + 1;
}
}
else if (c === '[') {
if (j > i) {
push();
}
i = j + 1;
b = i;
}
else if (c === ']') {
if (!b) {
error('Access path missing open bracket: ' + p);
}
if (b > 0) {
push();
}
b = 0;
i = j + 1;
}
}
if (b) {
error('Access path missing closing bracket: ' + p);
}
if (q) {
error('Access path missing closing quote: ' + p);
}
if (j > i) {
j += 1;
push();
}
return path;
};
const field = (fieldStr, name, opt = {}) => {
const path = splitAccessPath(fieldStr);
const parsedField = path.length === 1 ? path[0] : fieldStr;
return accessor(((opt && opt.get) || getter)(path), [parsedField], name || parsedField);
};
const id = field('id');
const identity = accessor(function (_) {
return _;
}, [], 'identity');
const zero = accessor(function () {
return 0;
}, [], 'zero');
const one = accessor(function () {
return 1;
}, [], 'one');
const truthy = accessor(function () {
return true;
}, [], 'true');
const falsy = accessor(function () {
return false;
}, [], 'false');
const emptyObject = accessor(function () {
return {};
}, [], 'emptyObject');
const isLegalKey = (key) => key !== '__proto__';
const writeConfig = (output, key, value, recurse) => {
if (!isLegalKey(key)) {
return;
}
if (isObject(value) && !isArray(value) && !isFunction(value)) {
if (!isObject(output[key])) {
output[key] = {};
}
const outputValue = output[key];
Object.keys(value).forEach((subKey) => {
if (recurse && (recurse === true || recurse[subKey])) {
writeConfig(outputValue, subKey, value[subKey]);
}
else if (isLegalKey(subKey)) {
outputValue[subKey] = value[subKey];
}
});
}
else {
output[key] = value;
}
};
function mergeNamed(a, b) {
if (isNil(a)) {
return b;
}
const map = {};
const out = [];
const add = (_) => {
if (!map[_.name]) {
map[_.name] = 1;
out.push(_);
}
};
b.forEach(add);
a.forEach(add);
return out;
}
const mergeConfig = (...configs) => {
return configs.reduce((out, source) => {
if (!source) {
return out;
}
Object.keys(source).forEach(key => {
if (key === 'signals') {
out.signals = mergeNamed(out.signals, source.signals);
}
else {
const r = key === 'legend' ? { layout: 1 } : key === 'style' ? true : null;
writeConfig(out, key, source[key], r);
}
});
return out;
}, {});
};
const DESCENDING = 'desc';
const ascending = (u, v) => {
if ((u < v || isNil(u)) && !isNil(v)) {
return -1;
}
if ((u > v || isNil(v)) && !isNil(u)) {
return 1;
}
const numericV = v instanceof Date ? +v : v;
const numericU = u instanceof Date ? +u : u;
if (Number.isNaN(numericU) && !Number.isNaN(numericV)) {
return -1;
}
if (Number.isNaN(numericV) && !Number.isNaN(numericU)) {
return 1;
}
return 0;
};
const compare1 = (fieldGetter, order) => (a, b) => {
return ascending(fieldGetter(a), fieldGetter(b)) * order;
};
const compareN = (fields, orders, n) => {
orders.push(0);
return (a, b) => {
let f;
let c = 0;
let i = -1;
while (c === 0 && i + 1 < n) {
i += 1;
f = fields[i];
c = ascending(f(a), f(b));
}
return c * orders[i];
};
};
const comparator = (fields, orders) => fields.length === 1 ? compare1(fields[0], orders[0]) : compareN(fields, orders, fields.length);
const compare = (fields, orders, opt = {}) => {
const arrayOrders = array(orders) || [];
const ord = [];
const get = [];
const fmap = {};
const gen = opt.comparator || comparator;
array(fields).forEach((f, i) => {
if (isNil(f)) {
return;
}
ord.push(arrayOrders[i] === DESCENDING ? -1 : 1);
const fieldGetter = isFunction(f) ? f : field(f, null, opt);
get.push(fieldGetter);
(accessorFields(fieldGetter) || []).forEach((fieldStr) => {
fmap[fieldStr] = 1;
});
});
return get.length === 0 ? null : accessor(gen(get, ord), Object.keys(fmap));
};
const extent = (array, func) => {
const valueGetter = isFunction(func) ? func : (val) => val;
let min;
let max;
if (array && array.length) {
const n = array.length;
for (let i = 0; i < n; i += 1) {
const value = valueGetter(array[i]);
if (!isNil(value) && !Number.isNaN(value)) {
if (isNil(min)) {
min = value;
max = value;
}
else {
min = Math.min(min, value);
max = Math.max(max, value);
}
}
}
return [min, max];
}
return [min, max];
};
const isEqual = (key, current, target, deep = true) => {
if (current === target) {
return true;
}
if (isNil(current) || isNil(target)) {
return isNil(current) && isNil(target);
}
if (!isObjectLike(current) && !isObjectLike(target)) {
return current === target;
}
const c = isArray(current) ? current : current[key];
const t = isArray(target) ? target : target[key];
if (c === t) {
return true;
}
if (deep === false) {
return false;
}
if (isArray(t)) {
if (isArray(c) && t.length === c.length && t.every((v, i) => v === c[i])) {
return true;
}
return false;
}
if (isObject(t)) {
if (isObject(c) && Object.keys(t).length === Object.keys(c).length && Object.keys(t).every(k => isEqual(k, t, c))) {
return true;
}
return false;
}
return false;
};
const toPercent = (percent, total) => {
if (isNil(percent)) {
return total;
}
return Math.min(isString(percent) ? (total * parseFloat(percent)) / 100 : percent, total);
};
const defaultFont = 'sans-serif';
const defaultFontSize = 11;
const defaultSymbolSize = 30;
const defaultStrokeWidth = 2;
const defaultColor = '#4c78a8';
const black = '#000';
const gray = '#888';
const lightGray = '#ddd';
var constants = /*#__PURE__*/Object.freeze({
__proto__: null,
black: black,
defaultColor: defaultColor,
defaultFont: defaultFont,
defaultFontSize: defaultFontSize,
defaultStrokeWidth: defaultStrokeWidth,
defaultSymbolSize: defaultSymbolSize,
gray: gray,
lightGray: lightGray
});
function ordinaryLeastSquares(uX, uY, uXY, uX2) {
const delta = uX2 - uX * uX;
const slope = Math.abs(delta) < 1e-24 ? 0 : (uXY - uX * uY) / delta;
const intercept = uY - slope * uX;
return [intercept, slope];
}
function visitPoints(data, x, y, callback) {
let i = -1;
let u;
let v;
data.forEach(d => {
u = x(d);
v = y(d);
if (!isNil(u) && (u = +u) >= u && !isNil(v) && (v = +v) >= v) {
callback(u, v, ++i);
}
});
}
function rSquared(data, x, y, uY, predict) {
let SSE = 0;
let SST = 0;
visitPoints(data, x, y, (dx, dy) => {
const sse = dy - predict(dx);
const sst = dy - uY;
SSE += sse * sse;
SST += sst * sst;
});
return 1 - SSE / SST;
}
function regressionLinear(data, x, y) {
let X = 0;
let Y = 0;
let XY = 0;
let X2 = 0;
let n = 0;
visitPoints(data, x, y, (dx, dy) => {
++n;
X += (dx - X) / n;
Y += (dy - Y) / n;
XY += (dx * dy - XY) / n;
X2 += (dx * dx - X2) / n;
});
const coef = ordinaryLeastSquares(X, Y, XY, X2);
const predict = (x) => coef[0] + coef[1] * x;
return {
coef: coef,
predict: predict,
rSquared: rSquared(data, x, y, Y, predict)
};
}
exports.Logger = Logger;
exports.accessor = accessor;
exports.accessorFields = accessorFields;
exports.accessorName = accessorName;
exports.ascending = ascending;
exports.clearLogger = clearLogger;
exports.compare = compare;
exports.emptyObject = emptyObject;
exports.error = error;
exports.extent = extent;
exports.falsy = falsy;
exports.field = field;
exports.getLogger = getLogger;
exports.getter = getter;
exports.id = id;
exports.identity = identity;
exports.isEqual = isEqual;
exports.mergeConfig = mergeConfig;
exports.one = one;
exports.regressionLinear = regressionLinear;
exports.setLogLevel = setLogLevel;
exports.setLogger = setLogger;
exports.splitAccessPath = splitAccessPath;
exports.toPercent = toPercent;
exports.truthy = truthy;
exports.vGrammarConstants = constants;
exports.writeConfig = writeConfig;
exports.zero = zero;
}));

2

dist/index.min.js

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

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4

es/error.js

@@ -0,4 +1,6 @@

import { getLogger } from "./logger";
export const error = message => {
if (__DEV__) throw Error(message);
getLogger().error(message);
};
//# sourceMappingURL=error.js.map

2

es/logger.js

@@ -37,3 +37,3 @@ import { isNumber } from "@visactor/vutils";

var _a;
return (this._level >= LoggerLevel.Error || __DEV__) && log(null !== (_a = this._method) && void 0 !== _a ? _a : "error", "ERROR", args),
return this._level >= LoggerLevel.Error && log(null !== (_a = this._method) && void 0 !== _a ? _a : "error", "ERROR", args),
this;

@@ -40,0 +40,0 @@ }

4

package.json
{
"name": "@visactor/vgrammar-util",
"version": "0.2.1",
"version": "0.3.0",
"description": "The common utils functions of VGrammar",

@@ -27,3 +27,3 @@ "keywords": [

"dependencies": {
"@visactor/vutils": "0.9.0-alpha.2"
"@visactor/vutils": "~0.11.1"
},

@@ -30,0 +30,0 @@ "devDependencies": {

cjs/error.js.map

Sorry, the diff of this file is not supported yet

cjs/logger.js.map

Sorry, the diff of this file is not supported yet

es/error.js.map

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es/logger.js.map

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