# Does Stata give up certain commands?

#### renaud

##### New Member
Hello,
I use Stata 12 by reading a book on Stata 11 and the Internet. I would like to use two commands: wincorr and grqreg. None of them works.

Do you know how to do simply winsorising with Stata?

More importantly, how to display graph of coefficients over quantiles, when you have done quantile regressions? (problem with grqreg command)

Have a nice day

Renaud

PS: sorry for my level in English... I'm French.

#### bukharin

##### RoboStataRaptor
These are not official commands - they are user-written addons. Try running:
Code:
findit wincorr
findit grqreg