Calculate deviance

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Description

Function to calculate deviance given two vectors of observed and predicted values. Requires a family argument which is set to binomial by default

Usage

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calc.deviance(obs, pred, weights = rep(1,length(obs)), 
                family="binomial", calc.mean = TRUE)

Arguments

obs

a vector with observed values

pred

a vector with predicted values that correspond the the values in obs

weights

a vector of weight values

family

One of "binomial", "bernoulli", "poisson", "laplace", or "gaussian"

calc.mean

Logical. If TRUE, the mean deviance is returned

Author(s)

John R. Leathwick and Jane Elith

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