[R] function to compare Brier scores from two models?

[Seth]

Hi,

I have probability estimates from two predictive models.  I have these
estimates and also a binary outcome for a validation data set not used in
calibrating either model.  I would like to calculate the Brier score for
both models on this binary outcome and test the hypothesis that the Brier
scores are equal from the two models.  I have not been able to find an R
function to do this, can someone point me to the appropriate library and
function if one exists?  Thanks, Seth

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