why might I be unable to use the options leverage and rstudent

[Jacob Thomas]

previously I recall using the options leverage and r student, as in

predict hat, leverage

and I never had any problems.

but now I get the following error
option leverage not allowed
r(198);



same thing with student option

At first I thought I might need to install a package, but I have not found anything online.
I am using stata 12.


Thanks!

[Carole J. Wilson]

What model are you estimating before you issue the -predict- command?

[Jacob Thomas]

Sorry, I just saw this reply and did not get a notification of it!

Here is the model before, logistic with continuous variables, binary, and indicator variables
xi: logistic visa numde i.geotravex educ schpc9foreig smile paeduc ifopim if good3==1

fitstat
I run It also here with ols regression of continuous on a continuous
reg lsal lwealthwosqm, beta

[Carole J. Wilson]

leverage is not a post estimation option of predict for logistic or logit, although it is for regress. However, hat is a synonym for leverage in regress and is available after both logit and logistic. See: help logistic postestimation, help logit postestimation, help regress postestimation for available options with predict. Also, there is no need to use the -xi:- prefix for factor variables (and may not play well with some post-estimation commands and user contributed programs). See help fvvarlist. Instead just write:

logistic visa numde i.geotravex educ...