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| From | Adam Guerrero <adamgue@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: How can I loop this? |
| Date | Sat, 4 May 2013 16:45:48 -0400 |
Hi Nick, Awesome. Thank you so much for your reply...reading all FAQs now! :-) ag On Sat, May 4, 2013 at 4:32 PM, Nick Cox <njcoxstata@gmail.com> wrote: > No need to loop. > > Your question is an FAQ. > > http://www.stata.com/support/faqs/data-management/replacing-missing-values/ > > Nick > njcoxstata@gmail.com > > > On 4 May 2013 21:23, Adam Guerrero <adamgue@gmail.com> wrote: >> Hi Stata Users, >> >> I have an unbalanced panel comprised of student years which can be >> reshaped into student terms (six years, three terms per year, >> providing a maximum 18 observations per student). One of the >> variables included in the data is a student's major area of >> specialization - major1. >> >> For some students this variable is defined at the start of their >> educations, missing for a few years, then defined again. After >> consulting with the registrar at the institution under analysis the >> following code was used to fill in the gaps >> >> by id: replace major1=major1[_n+1] if major1=="" & major1[_n+1]!="" & _n!=_N >> by id: replace major1=major1[_n+1] if major1=="" & major1[_n+1]!="" & _n!=_N >> by id: replace major1=major1[_n+1] if major1=="" & major1[_n+1]!="" & _n!=_N >> by id: replace major1=major1[_n+1] if major1=="" & major1[_n+1]!="" & _n!=_N >> by id: replace major1=major1[_n+1] if major1=="" & major1[_n+1]!="" & _n!=_N >> >> In other words, I had to type the same line of code over and over >> until all of the values were replaced. My question is whether there >> is a more efficient way to do this? I'm relatively new to Stata, so >> any advice would be very much appreciated. >> >> Adam Antonio >> * >> * 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/ > * > * 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/ -- Adam A. Guerrero Skype: adamadam3741 Phone: 214-274-3776 * * 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/