turf-quantile

turf-quantile

Takes a set of features, a property name, and a set of percentiles and outputs a quantile array. This can be passed as a break array to the isolines function or the isobands function.

###Install

npm install turf-quantile

###Parameters

name	description
pts	points to classify
z	z field
percentiles	percentiles to classify

###Usage

quantile(pts, z, percentiles)

###Example

var quantile = require('turf-quantile')
var fs = require('fs')

var z = 'elevation'
var percentiles = [10,30,40,60,80,90,99]

var pts = JSON.parse(fs.readFileSync('/path/to/pts.geojson'))

var quantiles = quantile(pts, propertyName, percentiles)
    
console.log(quantiles) // [ 12, 25, 29, 52, 76, 99, 143 ]