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| From | Nick Cox <njcoxstata@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: Re: referring to groups of variables by suffixes |
| Date | Wed, 28 Nov 2012 13:09:57 +0000 |
This is undoubtedly good advice. It is one of the reasons I used (the equivalent of) ds *_foo in my own post. Then you can see what your wildcard has caught. Nick On Wed, Nov 28, 2012 at 1:06 PM, Steve Nakoneshny <scnakone@ucalgary.ca> wrote: > Mike, > > All you need is to use the wildcard as a prefix. > > drop *_foo > drop *_bar > > This will -drop- all vars with _foo or _bar as terminal. If it so happened that you wanted to drop a var or series of vars with _foo in the middle, you would need to add another wildcard to the end of the -drop- command: > > drop *_foo* > > Be very careful using this technique as it is indiscriminate and you may end up dropping vars unintentionally because of a shared nomenclature. > > Steve > > Sent via carrier pigeon > > On 2012-11-28, at 5:49 AM, "Michael Stewart" <michaelstewartresearch@gmail.com> wrote: > >> Dear Statalist reader, >> >> I am working with a large dataset (approx 600 variables) with >> different names but some of them end in similar manner >> >> Eg: >> procedure__11_procedure_code___i >> procedure__11_procedure_date >> procedure__11_procedure_or_ind >> procedure__11_procedure_tissue_t >> procedure__11_procedure_type >> procedure__12_procedure_abnormal >> procedure__12_procedure_code_icd >> procedure__12_procedure_date >> procedure__12_procedure_ep_no >> procedure__12_procedure_location >> procedure__12_procedure_or_ind >> procedure__12_procedure_physicia >> procedure__12_procedure_tissue_t >> procedure__12_procedure_type >> procedure__12_procedure_type0 >> procedure__13_procedure_abnormal >> procedure__13_procedure_anes_age >> procedure__13_procedure_anes_met >> procedure__13_procedure_code_icd >> procedure__13_procedure_date >> >> I want to drop variables ending with procedure_tissue_t and >> procedure_anes_age. Its tedious to do it for large number of >> variables.Can you please suggest a shortcut . Is there a shortcut to >> refer to all variables ending with procedure_tissue_t & >> procedure_anes_age.I found shortcuts to refer to variables for >> prefixes but not for suffixes so far. * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/faqs/resources/statalist-faq/ * http://www.ats.ucla.edu/stat/stata/