def
func:rootMeanSquareErr
rootMeanSquareErr(val, acc, nDegrees: 0)
Fold a sample of numbers into their RMSE (root mean square error). The RMSE function determines the RMSE between a sample set and its mean using the n-degrees of freedom RMSE:
RMBE = sqrt( Σ(xᵢ - median)² ) / (n - nDegrees)
Examples:
samples.fold(rootMeanSquareErr) // unbiased zero degrees of freedom samples.fold(rootMeanSquareErr(_,_,1)) // 1 degree of freedom
meta
| def | func:rootMeanSquareErr |
|---|---|
| disKey | ui::rootMeanSquareErr |
| foldOn | Number |
| is | func |
| lib | lib:math |
| name | rootMeanSquareErr |