34 lines
942 B
JavaScript
34 lines
942 B
JavaScript
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var vows = require('vows');
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var assert = require('assert');
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var suite = vows.describe('jStat.spearmancoeff');
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require('../env.js');
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var tol = 0.0000001;
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suite.addBatch({
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'spearman': {
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'topic': function() {
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return jStat;
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},
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'return basic spearmancoeff': function(jStat) {
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assert.epsilon(tol, jStat.spearmancoeff([1, 2, 3, 4], [5, 6, 9, 7]), 0.8);
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},
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'return spearmancoeff with ties': function(jStat) {
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assert.epsilon(tol,
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jStat.spearmancoeff([1, 2, 3, 4], [5, 5, 9, 7]),
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0.7378647873726218);
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},
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'return spearmancoeff all ties': function(jStat) {
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assert.equal(isNaN(jStat.spearmancoeff([1, 2, 3, 4], [5, 5, 5, 5])),
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true);
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},
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'return spearmancoeff unequal arrays': function(jStat) {
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assert.equal(isNaN(jStat.spearmancoeff([1, 2, 3, 4], [5, 6, 7])),
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true);
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}
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}
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});
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suite.export(module);
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