[R] Optimal Y>=q cutoff after logistic regression

[Frank Harrell]

It is very seldom that such a cutoff is real and validates in another
dataset.  As described so well in Steyerberg's book Clinical Prediction
Modeling there are many good ways to present models to non-statisticians. 
Nomograms and calibration curves with histograms of predicted probabilities
are two good ones.

There is a reason that the speedometer in your car doesn't just read "slow"
and "fast".

Frank

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Frank Harrell
Department of Biostatistics, Vanderbilt University
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