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| From | Nick Cox <njcoxstata@gmail.com> |
| To | "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu> |
| Subject | Re: st: "stacking" a variable ? |
| Date | Mon, 2 Dec 2013 17:08:00 +0000 |
<> I am just underlining that [_n+3] does the loop for you. Nick njcoxstata@gmail.com On 2 December 2013 16:51, Thomas, Anthony <anthony_h_thomas@brown.edu> wrote: > sorry, thought you wanted to move observations from q1 to q2. The > principle is the same though... > > On Mon, Dec 2, 2013 at 11:35 AM, Nick Cox <njcoxstata@gmail.com> wrote: >> An explicit loop is unnecessary, as >> >> replace q2 = q2[_n+3] in 1/3 >> >> encapsulates the loop. Subscripting should be familiar in terms of >> e.g. [_n-1] for previous observation. >> >> Nick >> njcoxstata@gmail.com >> >> >> On 2 December 2013 16:28, Thomas, Anthony <anthony_h_thomas@brown.edu> wrote: >>> Hi Nick, >>> >>> You can try using Stata's subscript notation "_n": >>> >>> replace q2 = q1[4] if _n == 1 >>> replace q2 = q1[5] if _n == 2 >>> >>> *** where 4 and 5 are the observation number of what you want to move in q1 >>> >>> and so on. Of course it would be smarter to implement this in a loop >>> if possible. >>> >>> Hope that helps, >>> >>> Anthony >>> >>> On Mon, Dec 2, 2013 at 11:03 AM, Nick Bornschein >>> <nick.bornschein@gmail.com> wrote: >>>> Hello, >>>> >>>> after some problems with my data, I have a final question to deal with them. Imagine the following example: >>>> >>>> clear >>>> input q1 q2 >>>> 2.05 . >>>> 3.01 . >>>> 0.75 . >>>> . 1.99 >>>> . 1.86 >>>> . 0.44 >>>> end >>>> >>>> How do I "move" column q2 upwards, so that finally 1.99 is in the same line as 2.05 in the first row, 1.86 is besides 3.01 and so on. >>>> >>>> Thanks a lot >>>> -Nick >>>> * >>>> * 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/ >> * >> * 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/ * * 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/