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From |
"Nick Cox" <n.j.cox@durham.ac.uk> |

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

Subject |
st: RE: creating a varlist |

Date |
Wed, 22 Oct 2008 19:56:30 +0100 |

Zap the equals sign. With it you force evaluation and do get bitten by the limit on the length of a string expression. Incidentally the -egen- function is redundant if you are looping any way. gen ttt = 0 qui forval n = 5/46 { replace ttt = ttt + (q`n'3_1 == 1) replace ttt = ttt + (q`n'3_2 == 1) } Nick n.j.cox@durham.ac.uk Radu Ban I want to generate a variable with the -egen anycount- command. let's say: egen ttt = anycount(`vlist'), v(1) The varlist in the argument is long and the variables have some regularity in their names. They all of the form qX3_1 qX3_2, where X goes from 5 to 46. Note that there are other variables with X between 1 and 4 which I do not want, so that a varlist q*3_1 q*3_2 does not work. To create my variables list I did the following: local vlist "" forvalues n = 5/46 { local vlist = "`vlist' q`n'3_1 q`n'3_2" } *then to check di "`vlist'" However, the display command shows that the macro stops at q23. Am I running into a limit here? I checked help limits and the limit to number of characters in a macro is way higher ( 1,081,511 in Stata SE). If indeed there is a limit, can anyone point out a work around? * * 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/

**References**:**st: creating a varlist***From:*"Radu Ban" <raduban@gmail.com>

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