StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
82 lines
1.7 KiB
82 lines
1.7 KiB
"use strict"
|
|
|
|
var tape = require("tape")
|
|
var orderSegments = require("../lib/order-segments")
|
|
|
|
function sgn(x) {
|
|
if(x < 0) {
|
|
return -1
|
|
}
|
|
if(x > 0) {
|
|
return 1
|
|
}
|
|
return 0
|
|
}
|
|
|
|
function compareSegments(t, a, b, s) {
|
|
var label = " (" + a.join(")-(") + ") / (" + b.join(")-(") + ")"
|
|
for(var flip=0; flip<2; ++flip) {
|
|
for(var i=0; i<2; ++i) {
|
|
for(var j=0; j<2; ++j) {
|
|
t.equals(sgn(orderSegments(
|
|
[a[i], a[i^1]],
|
|
[b[j], b[j^1]])), s, "check order flip:" + flip + ",aperm:" + i + ",bperm:" + j + label)
|
|
}
|
|
}
|
|
var tmp = a
|
|
a = b
|
|
b = tmp
|
|
s *= -1
|
|
}
|
|
}
|
|
|
|
tape("order-segments", function(t) {
|
|
|
|
//Harder cases
|
|
compareSegments(t,
|
|
[[0,0], [0.5,0.5]],
|
|
[[0,2], [2,0]],
|
|
1)
|
|
|
|
compareSegments(t,
|
|
[[0,0], [0.5,0.5]],
|
|
[[-2,0], [1,-3]],
|
|
-1)
|
|
|
|
//Check some easy examples
|
|
compareSegments(t,
|
|
[[0, 0], [1, 0]],
|
|
[[0, 1], [1, 1]],
|
|
1)
|
|
compareSegments(t,
|
|
[[0, 0], [1, 0]],
|
|
[[1, 0], [2, 0]],
|
|
1)
|
|
//Create a fan of segments
|
|
var fan = [[[0,0], [0,-1]]]
|
|
for(var x=1; x<30; ++x) {
|
|
var theta = (x / 30) * Math.PI
|
|
fan.push(
|
|
[[0,0],
|
|
[Math.sin(theta), -Math.cos(theta)]])
|
|
}
|
|
fan.push([[0,0], [0, 1]])
|
|
for(var i=0; i<fan.length; ++i) {
|
|
compareSegments(t, fan[i], fan[i], 0)
|
|
for(var j=i+1; j<fan.length; ++j) {
|
|
compareSegments(t, fan[i], fan[j], 1)
|
|
}
|
|
}
|
|
//Create negative fan
|
|
var negFan = fan.map(function(seg) {
|
|
return [seg[0], [-seg[1][0], seg[1][1]]]
|
|
})
|
|
for(var i=0; i<fan.length; ++i) {
|
|
compareSegments(t, negFan[i], negFan[i], 0)
|
|
for(var j=i+1; j<fan.length; ++j) {
|
|
compareSegments(t, fan[i], fan[j], 1)
|
|
}
|
|
}
|
|
|
|
t.end()
|
|
}) |