StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
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70 lines
2.1 KiB
70 lines
2.1 KiB
4 years ago
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'use strict'
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var tape = require('tape')
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var toPX = require('../')
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var parseUnit = require('parse-unit')
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var almostEqual = require('almost-equal')
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var units = ['em', 'ch', 'ex', 'rem', 'px', 'vw', 'vh', 'vmin', 'vmax', 'in', 'cm', 'mm', 'pt', 'pc']
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var fontSizes = ['20px', '10px', '1em', '3in']
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tape('test to-px', function(t) {
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if (typeof document === 'undefined') return t.end()
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function testUnitsEmpirically(element) {
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var testDiv = document.createElement('div')
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element.appendChild(testDiv)
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for(var i=0; i<units.length; ++i) {
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testDiv.style['height'] = '128' + units[i]
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testDiv.style.position = 'absolute'
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testDiv.style.width = '1px'
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var expected = parseUnit(getComputedStyle(testDiv).getPropertyValue('height'))[0]/128
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var value = units[i]
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var actual = toPX(units[i], element)
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t.ok(almostEqual(actual, expected, 0.005, almostEqual.FLT_EPSILON),
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'testing: ' + units[i] + ' ' + actual + ' ~ ' + expected)
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value = '1' + units[i]
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actual = toPX(value, element)
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t.ok(almostEqual(actual, expected, 0.005, almostEqual.FLT_EPSILON),
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'testing: ' + value + ' ' + actual + ' ~ ' + expected)
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value = Math.PI + units[i]
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actual = toPX(value, element)
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expected *= Math.PI
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t.ok(almostEqual(actual, expected, 0.005, almostEqual.FLT_EPSILON),
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'testing: ' + value + ' ' + actual + ' ~ ' + expected)
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}
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element.removeChild(testDiv)
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}
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testUnitsEmpirically(document.body)
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var container = document.createElement('div')
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document.body.appendChild(container)
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for(var i=0; i<fontSizes.length; ++i) {
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container.style['font-size'] = fontSizes[i]
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testUnitsEmpirically(container)
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}
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var header = document.createElement('h1')
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document.body.appendChild(header)
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testUnitsEmpirically(header)
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t.end()
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})
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tape('edge cases', function (t) {
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t.equal(toPX(), null, 'no value')
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t.equal(toPX(''), null, 'empty string')
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t.equal(toPX(null), null, 'null value')
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t.equal(toPX('abc'), null, 'unknown units')
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t.equal(toPX('5def'), null, 'wrong units')
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t.equal(toPX('10'), null, 'number no units')
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t.equal(toPX(10), null, 'number value')
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t.end()
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})
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