time-to-botec/squiggle/node_modules/jstat/test/vector/stdev-test.js
NunoSempere b6addc7f05 feat: add the node modules
Necessary in order to clearly see the squiggle hotwiring.
2022-12-03 12:44:49 +00:00

44 lines
1.1 KiB
JavaScript

var vows = require('vows');
var assert = require('assert');
var suite = vows.describe('jStat.stdev');
require('../env.js');
suite.addBatch({
'stdev': {
'topic': function() {
return jStat;
},
'return basic stdev': function(jStat) {
assert.equal(jStat.stdev([1, 2, 3, 4]), 1.118033988749895);
},
'return basic stdev using sample': function(jStat) {
assert.equal(jStat.stdev([1, 2, 3, 4, 5], true), 1.5811388300841898);
},
'stdev from instance': function(jStat) {
assert.equal(jStat([1, 2, 3, 4]).stdev(), 1.118033988749895);
},
'stdev matrix cols': function(jStat) {
assert.deepEqual(jStat([[1, 2], [3, 4]]).stdev(), [1, 1]);
}
},
'#stdev vector': {
'topic': function() {
jStat([1, 2, 3, 4]).stdev(this.callback);
},
'stdev callback': function(val, stat) {
assert.equal(val, 1.118033988749895);
}
},
'#stdev matrix cols': {
'topic': function() {
jStat([[1, 2], [3, 4]]).stdev(this.callback);
},
'stdev matrix cols callback': function(val, stat) {
assert.deepEqual(val, [1, 1]);
}
}
});
suite.export(module);