st: predict, rs option for probit?

[Guo Xu <digitalepourpre@gmail.com>]

dear list,

sorry for this simple question: i get a "option rs not allowed" when i
use predict rstd, rs after a probit estimation.

however, this seems to work fine if i use a logit. is there any reason
for this and how do i get the std residuals for probit?

i tried to look it up in handbook and online but couldn't find a simple answer.

thanks a lot and sorry for this rookie problem,

guo
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