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Defined as: mean((log(response + 1, exp(1)) - log(truth + 1, exp(1)))^2). This is mostly used for count data, note that all predicted and actual target values must be greater or equal '-1' to compute the mean squared logarithmic error.
MSLE(truth, response)
[numeric] vector of true values
[numeric] vector of predicted values
# NOT RUN { n = 20 set.seed(123) truth = abs(rnorm(n)) response = abs(rnorm(n)) MSLE(truth, response) # }
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