datasets-iris-versicolor-sepal

1.0.1 • Public • Published

Iris Versicolor Sepal

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Edgar Anderson's data for Iris versicolor sepal length and width.

Installation

$ npm install datasets-iris-versicolor-sepal

For use in the browser, use browserify.

Usage

var data = require( 'datasets-iris-versicolor-sepal' );

data.len

Edgar Anderson's data for Iris versicolor sepal length.

console.log( data.len );
// returns [ 7, 6.4, 6.9, ... ]

data.width

Edgar Anderson's data for Iris versicolor sepal width.

console.log( data.width );
// returns [ 3.2, 3.2, 3.1, ... ]

Examples

var toMatrix = require( 'compute-to-matrix' ),
    mean = require( 'compute-mean' ),
    variance = require( 'compute-variance' ),
    data = require( 'datasets-iris-versicolor-sepal' );
 
// Convert the data arrays to a matrix:
var mat = toMatrix( [ data.len, data.width ] );
 
// Calculate the sample mean along the rows:
console.log( mean( mat ).toString() );
 
// Calculate the sample variance along the rows:
console.log( variance( mat ).toString() );

To run the example code from the top-level application directory,

$ node ./examples/index.js

References

  • Anderson, Edgar (1935). "The irises of the Gaspe Peninsula," Bulletin of the American Iris Society, 59, 2–5.
  • Fisher, Ronald A. (1936). "The use of multiple measurements in taxonomic problems." Annals of Eugenics, 7, Part II, 179–188.

See Also

Tests

Unit

Unit tests use the Mocha test framework with Chai assertions. To run the tests, execute the following command in the top-level application directory:

$ make test

All new feature development should have corresponding unit tests to validate correct functionality.

Test Coverage

This repository uses Istanbul as its code coverage tool. To generate a test coverage report, execute the following command in the top-level application directory:

$ make test-cov

Istanbul creates a ./reports/coverage directory. To access an HTML version of the report,

$ make view-cov

License

MIT license.

Copyright

Copyright © 2015. The Compute.io Authors.

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npm i datasets-iris-versicolor-sepal

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1.0.1

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  • kgryte