Compute the log loss/cross-entropy loss.
Predicted labels vector, as returned by a model
Ground truth (correct) labels vector
Log loss/Cross-Entropy Loss
d_AD <- data.frame(treatment = gl(3,3), outcome = gl(3,1,9),
counts = c(18,17,15,20,10,20,25,13,12))
glm_poisson <- glm(counts ~ outcome + treatment,
family = poisson(link = "log"), data = d_AD)
Poisson_LogLoss(y_pred = glm_poisson$fitted.values, y_true = d_AD$counts)
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