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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62 lines
1010 B
62 lines
1010 B
4 years ago
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"use strict"
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var inSphere = require("../in-sphere.js")
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var twoProduct = require("two-product")
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function sgn(x) {
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if(x < 0) {
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return -1
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}
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if(x > 0) {
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return 1
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}
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return 0
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}
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require("tape")(function(t) {
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t.equals(sgn(inSphere([0], [1], [0.5])), -1)
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t.equals(sgn(inSphere([0], [1], [1.5])), 1)
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t.equals(sgn(inSphere(
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[0,-1],
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[1,0],
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[0,1],
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[-0.5,0])), 1)
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t.equals(sgn(inSphere(
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[0,-1],
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[1,0],
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[0,1],
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[-1,0])), 0)
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t.equals(sgn(inSphere(
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[0,-1],
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[1,0],
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[0,1],
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[-1.5,0])), -1 )
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var x = 1e-64
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for(var i=0; i<128; ++i) {
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t.equals(sgn(inSphere(
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[0,x],
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[-x,-x],
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[x,-x],
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[0,0])), 1, "sphere test:" + x)
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t.equals(sgn(inSphere(
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[0,x],
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[-x,-x],
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[x,-x],
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[0,2*x])), -1, "sphere test:" + x)
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t.equals(sgn(inSphere(
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[0,x],
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[-x,-x],
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[x,-x],
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[0,x])), 0, "sphere test:" + x)
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x *= 10
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}
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t.end()
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})
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