Metrics: logLoss – R documentation

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logLoss

Mean Log Loss

logLoss computes the average log loss between two numeric vectors.

logLoss(actual, predicted)

`actual`	The ground truth binary numeric vector containing 1 for the positive class and 0 for the negative class.
`predicted`	A numeric vector of predicted values, where the values correspond to the probabilities that each observation in `actual` belongs to the positive class

actual <- c(1, 1, 1, 0, 0, 0)
predicted <- c(0.9, 0.8, 0.4, 0.5, 0.3, 0.2)
logLoss(actual, predicted)

Evaluation Metrics for Machine Learning

v0.1.4

BSD_3_clause + file LICENSE

Authors

Ben Hamner [aut, cph], Michael Frasco [aut, cre], Erin LeDell [ctb]

Initial release