% Generated by roxygen2: do not edit by hand

% Please edit documentation in R/metrics.R

\name{focal_loss_multiclass}

\alias{focal_loss_multiclass}

\title{Focal loss for two or more labels}

\usage{

focal_loss_multiclass(y_true, y_pred, gamma = 2.5, alpha = c(1))

}

\arguments{

\item{y_true}{Vector of true values.}

\item{y_pred}{Vector of predicted values.}

\item{gamma}{Focusing parameter.}

\item{alpha}{Vector of weighting factors.}

}

\value{

A function implementing focal loss.

}

\description{

Focal loss for two or more labels

}

\examples{

\dontshow{if (reticulate::py_module_available("tensorflow")) (if (getRversion() >= "3.4") withAutoprint else force)(\{ # examplesIf}

y_true <- matrix(c(0, 1, 0, 0, 0, 1), nrow = 2, byrow = TRUE)

y_pred <- matrix(c(0.15, 0.8, 0.05,

                   0.08, 0.02, 0.9), nrow = 2, byrow = TRUE) 

fl <- focal_loss_multiclass(y_true, y_pred)

fl$numpy()

\dontshow{\}) # examplesIf}

}