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Nov 14, 2017 at 22:11 history edited mdewey
Scores tag removed as deprecated
Mar 21, 2016 at 13:29 vote accept vonjd
Mar 21, 2016 at 13:25 answer added vonjd timeline score: 2
Oct 6, 2015 at 9:40 comment added vonjd @Scortchi: Yeah, silly mistake, so it is $log(.5/(1-.5)) = log(1) = 0$
Oct 6, 2015 at 9:30 comment added Scortchi No - use the logit function, whose inverse is in your code above. The logit of 0.5 is 0.
Oct 6, 2015 at 9:25 comment added vonjd @Scortchi: So basically if one wants to have a probability of $.5$ the threshold is $exp(.5)/(1-exp(.5)) = -2.54$ ?
Oct 6, 2015 at 8:59 comment added Scortchi (1) Express the threshold in log odds rather than probability. (2) You need to describe how that scorecard's arrived at. I suspect it's by fitting a different model to yours, in which the predictors are binned & coefficients estimated for each bin.
Oct 6, 2015 at 8:00 history asked vonjd CC BY-SA 3.0