-xtserial- is part of official Stata. Thus there is no question of
either installing or uninstalling it as an extra. Your problem with
-xtserial- arose because Stata was not properly updated previously.
-xtcsd- in contrast is a user-written program from SJ and SSC.
(Please remember to spell out where user-written programs you refer to
come from, as requested in the FAQ.)
It seems that you have problematic input for your calls to -xtcsd-. I
imagine that the authors of this program, who may not be members of
Statalist, would want to know much more about your data than you say
here.
Nick
[email protected]
[email protected]
thank you for your fast and helpful response. I updated Stata and now
xtserial works.
With xtcsd I don't get the previuos error message anymore. However, if
I try xtreg, fe and then want to conduct xtcsd (method of Pesaran) it
says:
. xtcsd, pesaran
Unknown function *sqrt()
or if I take Friedman/Frees it says:
. xtcsd, friedman
no observations
Do you have any ideas what may be the cause for these errors?
Zitat von Martin Weiss <[email protected]>:
> What does -which xtserial- give you? Have you -update-d your official
Stata
> fully?
[email protected]
> I'm doing some analysis with panel data. For this reason, today I
> installed via ssc the functions xtserial, xtcsd, xttest0-3 and
> pantest2. Interestingly, the xtserial and xtcsd functions do not run.
> The xttest and the pantest2 functions, however, work without any
> problems. With xtserial I tried for example the following (after
> declaring the data to be time series using "tsset bankid counter"):
> -xtserial ln_medbas relfva relloans
>
> But I received the following error message:
> _TS_p_delta_getnumb(): 3499 strtoreal() not found
> _TS_p_delta_increment(): - function returned error
> _TS_p_delta(): - function returned error
> <istmt>: - function returned error
> The same came when I tried xtcsd.
>
> I tried to install xtserial again, but Stata said it is already
> installed. Then I tried to uninstall it, but it said it cannot find
> the package...
>
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