flow-divide
Transform stream factory to perform scalar division on streamed numeric data values.
Note: this module is provided for semantic convenience. Its functionality is the same as flow-multiply
, where the scalar
(divisor) is simply its fractional equivalent; i.e., for scalar multiplication, scalar = 1/d
, where d
is the divisor.
Installation
$ npm install flow-divide
API
To create a stream factory,
var divStream = ;// Create a new factory:var dStream = ;
dStream.divisor( [value] )
This method is a setter/getter. If no value
is provided, returns the divisor
; default is 1
. To set the divisor
,
dStream;
dStream.stream()
To create a new scalar division stream,
var stream = dStream;
Usage
Methods are chainable.
;
Examples
var eventStream =dStream = ;// Create some data...var data = 1000 ;for var i = 0; i < datalength; i++data i = Math;// Create a readable stream:var readStream = eventStream;// Create a new scalar division stream:var stream =;// Pipe the data:readStream;
To run the example code from the top-level application directory,
$ node ./examples/index.js
Tests
Unit tests use the Mocha test framework with Chai assertions.
Assuming you have installed Mocha, execute the following command in the top-level application directory to run the tests:
$ mocha
All new feature development should have corresponding unit tests to validate correct functionality.
License
Copyright
Copyright © 2014. Athan Reines.