Re: st: Number of a subset of variables in local

[Antoine Terracol <Antoine.Terracol@univ-paris1.fr>]

forgot to add:


local numvar=wordcount("`mylist'")
di `numvar'

Antoine

On 19/08/2010 15:11, Antoine Terracol wrote:
> unab mylist : name*
> display "`mylist'"
>
> Antoine
>
> On 19/08/2010 15:04, Trelle Sven wrote:
> > Dear all,
> > I have a dataset with several variables all starting with the same name
> > plus sequential numbers at the end (e.g. name1, name2, name3, ...). In
> > addition, there are several other variables. I want to put the number of
> > variables starting with "name" in a local. Originally I thought I can
> > use
> >
> > describe name*
> >
> > But apparently, the describe command puts the number of variables of the
> > whole dataset in r(k) and not just the number of variables specificied
> > after the command.
> >
> >
> > This is my workaround:
> >
> > * example starts
> > use datatset.dta, clear
> > keep name*
> > qui describe
> > local n = r(k)
> > use datatset.dta, clear
> > * Example ends
> >
> > Does anybody know whether there is a more elegant way i.e. can I avoid
> > loading the dataset twice?
> >
> >
> > Thanks for your help
> > Sven
> >
> >
> > *
> > * For searches and help try:
> > * http://www.stata.com/help.cgi?search
> > * http://www.stata.com/support/statalist/faq
> > * http://www.ats.ucla.edu/stat/stata/

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*
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