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implemented the Goodness of Fit indicator

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Jaap van Ekris 2024-01-08 12:02:56 +01:00 committed by GitHub
parent e1ecfb45ab
commit db7d88b1fd
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 14 additions and 3 deletions
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17
app/engine/utils/FullTSLinearSeries.js
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@ -31,7 +31,6 @@ function createTSLinearSeries (maxSeriesLength = 0) {
let _A = 0
let _B = 0
let _goodnessOfFit = 0
function push (x, y) {
// Invariant: A contains all a's (as in the general formula y = a * x^2 + b * x + c)
@ -88,8 +87,21 @@ function createTSLinearSeries (maxSeriesLength = 0) {
function goodnessOfFit () {
// This function returns the R^2 as a goodness of fit indicator
let i = 0
let ssr = 0
let sst = 0
if (X.length() >= 2) {
return _goodnessOfFit
while (i < X.length() - 1) {
ssr =+ Math.pow((Y.get(i) - projectX(X.get(i))), 2)
sst =+ Math.pow((Y.get(i) - Y.average()), 2)
i++
}
if (sst !== 0) {
const _goodnessOfFit = 1 - (ssr / sst)
return _goodnessOfFit
} else {
return 0
}
} else {
return 0
}
@ -174,7 +186,6 @@ function createTSLinearSeries (maxSeriesLength = 0) {
A.reset()
_A = 0
_B = 0
_goodnessOfFit = 0
}
return {