Naturally, for anything interesting (eg fitting a lasso penalized GLM) SAS (and others) encourage you to simply call out to R. (I will now wait for someone to amuse me by bringing up the misleadingly named PROC in SAS that does L1 regularization... to linear models.)
I can use either, personally I prefer R. Or Python. Or scala. Or really anything that isn't SAS. I feel dirty after using it.
Naturally, for anything interesting (eg fitting a lasso penalized GLM) SAS (and others) encourage you to simply call out to R. (I will now wait for someone to amuse me by bringing up the misleadingly named PROC in SAS that does L1 regularization... to linear models.)
I can use either, personally I prefer R. Or Python. Or scala. Or really anything that isn't SAS. I feel dirty after using it.