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technicalindicators

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Readme

TechnicalIndicators

A javascript technical indicators written in javascript.

Installation

For nodejs install using npm

npm install --save technicalindicators

const SMA = require('technicalindicators').SMA;

For browser install using bower

bower install --save technicalindicators

<script src="bower_components/technicalindicators/browser.js"></script>

All indicators will be available in window object. So you can just use

SMA.calculate({period : period, values : []});

API

There are three ways you can use to get the indicator results.

##calculate

Every indicator has a static method calculate which can be used to calculate the indicator without creating an object.

const SMA = require('technicalindicators').SMA;
var prices = [1,2,3,4,5,6,7,8,9,10,12,13,15];
var period = 10;
SMA.calculate({period : period, values : prices})

##nextValue

nextValue method is used to get the next indicator value.

var sma = new SMA({period : period, values : []});
var results = [];
prices.forEach(price => {
  var result = sma.nextValue(price);
  if(result)
    results.push(result)
});

##getResult

This a merge of calculate and nextValue. The usual use case would be

1.Initialize indicator with available price value

2.Get results for initialized values

3.Use nextValue to get next indicator values for further tick.

var sma = new SMA({period : period, values : prices});
sma.getResult(); // [5.5, 6.6, 7.7, 8.9]
sma.nextValue(16); // 10.1

Note: Calling nextValue will not update getResult() value.

#Available Indicators

#Running tests and getting coverage

npm test

npm run cover

Contribute

Create issues about anything you want to report, change of API's, or request for adding new indicators. You can also create pull request with new indicators.