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From | "Dimitriy V. Masterov" <dvmaster@gmail.com> |
To | statalist@hsphsun2.harvard.edu |
Subject | Re: st: database manipulation |
Date | Thu, 7 Oct 2010 17:20:05 -0400 |
> 1. Is there a way to convert the following date format (1/1/1975) into > a date form that stata will recognize? Try this (assuming your original variable is named date) gen date2=date(date,"MDY") format date2 %td > 2. Is it possible to separate a single string field separated by > commas into 2 separate fields (i.e. Dallas, TX into Dallas in one > field and TX in another)? What about if a space was between the two > fields (i.e. Dallas TX into two fields - one with Dallas and the other > with TX)? There are 2 ways of getting the state (assuming your city-state variable is named cs). The second is probably safer since regular expressions can go wrong. gen state = regexs(0) if regexm(cs,"[A-Z][A-Z]$") // grab 2 CAPITALIZED letters at the end gen state2 = substr(cs,-2,.) // grab the last two letters at the end This is how you get the city. gen city = regexs(1) if regexm(cs,"(^.*) ([, A-Z][A-Z]$)") replace city = regexr(city,",$","") // gets rid of any commas on the end HTH, DVM > Thank you in advance. > > Mike > * > * 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/ > * * 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/