Bollinger Bands

Calculate the values of the Bollinger Bands from giving values.

Instalation

composer require romulodl/bollinger-bands

or add romulodl/bollinger-bands to your composer.json. Please check the latest version in releases.

Usage

$atr = new Romulodl\BollingerBands();
$atr->calculate(array $values);
//returns an array [middle band, upper band, lower band]

Example of use:

$atr = new Romulodl\BollingerBands();
$atr->calculate([
  9807.49,
  9550.67,
  8719.53,
  8561.09,
  8808.71,
  9305.91,
  9786.80,
  9310.73,
  9374.99,
  9678.57,
  9731.10,
  9773.64,
  9508.11,
  9060.00,
  9166.40,
  9176.41,
  8711.37,
  8895.65,
  8837.05,
  9197.32,
]);

Why did you do this?

The PECL Trading extension is crap and not everyone wants to install it. I am building a trading bot which will need the Bollinger Bands value as part of the calculation.