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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StackGenVis/frontend/node_modules/robust-in-sphere/test/test.js

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1010 B

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