Improve accuracy of logdiffcdf(::Normal, x, y)
#1728
Merged
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Currently evaluating
logdiffcdf(::Normal, x, y)
forx
,y
in the tails of the distribution returns-Inf
. We can do better by usingSpecialFunctions.logerf
.This issue came up in #1723 and will be helpful for that PR I assume.