ohlc

Major update for version 2

install

node.js

npm install ohlc

var ohlc = require('ohlc')

Browser

<script src="dist/ohlc.js"></script>

CDN

<script src="https://cdn.jsdelivr.net/npm/ohlc"></script>
 
<script src="https://cdn.jsdelivr.net/gh/mick-whats/ohlc-node@2.0.1/dist/ohlc.js"></script>

sumple data

arrayData = [
  ["2017-01-04",348,350,346,350,68700],
  ["2017-01-05",350,353,349,352,59200],
  ["2017-01-06",350,358,350,356,168900]
]

toDaily()

output to daily data

ohlc(arrayData).toDaily();
/// result 
[
  ...
  {
    "Date": '2017-04-03',
    Open: 352,
    High: 352,
    Low: 348,
    Close: 348,
    Volume: 108200
  }
  ...
]

toWeekly()

output to weekly data

ohlc(arrayData).toWeekly();
/// result 
[
  ...
  {
    "Date": '2017-04-02',
    Open: 352,
    High: 352,
    Low: 338,
    Close: 339,
    Volume: 379400
  }
  ...
]

toMonthly

output to monthly data

ohlc(arrayData).toMonthly();
/// result 
[
  ...
  {
    "Date": '2017-04-01',
    Open: 352,
    High: 370,
    Low: 330,
    Close: 357,
    Volume: 1514900
  }
  ...
]

value(period)

output data

 
// daily
ohlc(arrayData).value()
// equal toDaily
ohlc(arrayData).toDaily()
 
// weekly
ohlc(arrayData).value('weekly')
// equal toWeekly
ohlc(arrayData).toWeekly()
 
// monthly
ohlc(arrayData).value('monthly')
// equal toMonthly
ohlc(arrayData).toMonthly()
 

toChartData(period)

It complies with high charts

Candlestick | Highcharts
https://www.highcharts.com/samples/data/aapl-ohlc.json

var chartData = ohlc(arrayData).sma(5, 25).toChartData();
 
Object.keys(chartData)
//=> ['candle', 'volume', 'sma5', 'sma25']
 
chartData.candle[90]
//=> [1494979200000, 370, 372, 365, 369]
chartData.volume[90]
//=> [1494979200000, 32300]
chartData.sma5[90]
//=> [1494979200000, 372]
chartData.sma25[90]
//=> [1494979200000, 359]
moment.utc(1494979200000).format('YYYY-MM-DD')
//=> '2017-05-17'

start() and end()

Set the output period

prices = ohlc(arrayData).toDaily();
/// prices.length is 101
 
prices = ohlc(arrayData).start('2017-04-03').toDaily();
/// prices.length is 40
 
prices = ohlc(arrayData).end('2017-04-10').toDaily();
/// prices.length is 67
 
prices = ohlc(arrayData).start('2017-04-03').end('2017-04-10').toDaily();
/// prices.length is 6

sma

This will add sma(simple MA)

ohlc(arrayData).sma(5, 25, 75).toDaily();
/// result
[
  ...
  {
    Date: '2017-05-31',
    Open: 372,
    High: 372,
    Low: 362,
    Close: 364,
    Volume: 46500,
    sma5: 373,
    sma25: 373,
    sma75: 360
  }
  ...
]