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From |
Nick Cox <njcoxstata@gmail.com> |

To |
"statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu> |

Subject |
Re: st: Loop to replace values of a variable |

Date |
Wed, 18 Dec 2013 13:38:26 +0000 |

No loop needed; or rather, Stata will willingly loop on your behalf. replace x = n / 10 Nick njcoxstata@gmail.com On 18 December 2013 13:33, emanuele mazzini <madsoenistata@gmail.com> wrote: > I would like to program a (relatively) simple loop to replace the > values of a variable I created, but I cannot figure it out how to > write the syntax. > > The structure of my data is very simple: > I have 300 observations and a variable, say x, that in the first cell > (i.e. for n=1) is equal to 0.1, while it is missing for all other 299 > cells. Data look like: > > n x > 1 0.1 > 2 . > 3 . > 4 . > . > . > . > . > . > 299 . > 300 . > > I would like the loop to replace the missing values of my variable by > going from cell 2 to cell 300, and to have a replace that would be at > a 0.1 intervals, so as to obtain data that look like: > > n x > 1 0.1 > 2 0.2 > 3 0.3 > 4 0.4 > . > . > . > . > . > 299 29.9 > 300 30 > > I can obviously do it by hand, but a loop would be naturally much more > efficient! > Does anyone know how to make it? * * 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/

**References**:**st: Loop to replace values of a variable***From:*emanuele mazzini <madsoenistata@gmail.com>

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