Transform stream factory to find sliding-window maximum values (moving max) over a numeric data stream.
npm install flow-mmaxflow-mmax
=========
Transform stream factory to find sliding-window maximum values (moving max) over a numeric data stream.
``bash`
$ npm install flow-mmax
` javascript
var eventStream = require('event-stream'),
maxStream = require('flow-mmax');
// Create an array containing random numbers:
var randoms = new Array( 50 );
for (var i = 0; i < randoms.length; i++) {
randoms[i] = Math.round(Math.random() * 100);
}
// Create a readable stream from an array:
var randStream = eventStream.readArray(randoms);
// Create a new moving max stream:
var myStream = maxStream()
.window( 7 )
.stream();
// Pipe the data:
randStream.pipe(myStream)
.pipe(eventStream.map(function(d,clbk){
clbk(null,d.toString()+'\n');
}))
.pipe(process.stdout);
`
To run the example code from the top-level application directory,
`bash`
$ node ./examples/index.js
Unit tests use the Mocha test framework with Chai assertions.
Assuming you have globally installed Mocha, execute the following command in the top-level application directory to run the tests:
`bash``
$ mocha
All new feature development should have corresponding unit tests to validate correct functionality.
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Copyright © 2014. Rebekah Smith.