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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42 lines
676 B
42 lines
676 B
"use strict"
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var doubleBits = require("double-bits")
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var SMALLEST_DENORM = Math.pow(2, -1074)
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var UINT_MAX = (-1)>>>0
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module.exports = nextafter
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function nextafter(x, y) {
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if(isNaN(x) || isNaN(y)) {
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return NaN
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}
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if(x === y) {
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return x
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}
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if(x === 0) {
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if(y < 0) {
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return -SMALLEST_DENORM
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} else {
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return SMALLEST_DENORM
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}
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}
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var hi = doubleBits.hi(x)
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var lo = doubleBits.lo(x)
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if((y > x) === (x > 0)) {
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if(lo === UINT_MAX) {
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hi += 1
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lo = 0
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} else {
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lo += 1
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}
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} else {
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if(lo === 0) {
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lo = UINT_MAX
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hi -= 1
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} else {
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lo -= 1
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}
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}
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return doubleBits.pack(lo, hi)
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} |