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From |
Grace Jessie <gracejessie@hotmail.com> |

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

Subject |
RE: st: a loop error of -foreach- |

Date |
Sat, 18 Sep 2010 08:47:19 +0000 |

Sarah, thank you very much! It works well! Grace > From: sedging@ucla.edu > To: statalist@hsphsun2.harvard.edu > Subject: RE: st: a loop error of -foreach- > Date: Fri, 17 Sep 2010 10:02:25 -0700 > > . > Go with the previous suggestion of : > > if "`j'" == "b" { > > I think that will work even if b is the name of a variable because you're > telling stata to check whether the local macro j is equal to the string "b" > rather than equal to the value of the variable b. > > -Sarah > > > -----Original Message----- > From: owner-statalist@hsphsun2.harvard.edu > [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Grace Jessie > Sent: Friday, September 17, 2010 8:37 AM > To: statalist@hsphsun2.harvard.edu > Subject: RE: st: a loop error of -foreach- > > More exactly, I want to do -reg b x1 x2- if `j' gets the value of b,and do > -logit a/c/d x1 x2- otherwise, where x1 and x2 are independent variables. > I just want to take the lists as elements and then do different things,i.e., > do different things for different elements in the lists. > > Grace > > > ---------------------------------------- > > From: gracejessie@hotmail.com > > To: statalist@hsphsun2.harvard.edu > > Subject: RE: st: a loop error of -foreach- > > Date: Fri, 17 Sep 2010 15:26:06 +0000 > > > > Dear Uli and Maarten, > > Thank you for your replies. > > I know what is wrong after your explanations. > > However, what I want to do is letting stata interpret the elements of the > lists just as elements, not variable names. > > In fact, I want to do -count- commmand or any other commands if the > element is b and do others (such as -su-) otherwise. > > How to modify my loop for doing that? > > Thank you. > > > > Best regards, > > Grace > > > > ---------------------------------------- > > > Date: Fri, 17 Sep 2010 09:18:39 +0000 > > > From: maartenbuis@yahoo.co.uk > > > Subject: Re: st: a loop error of -foreach- > > > To: statalist@hsphsun2.harvard.edu > > > > > > --- On Fri, 17/9/10, Grace Jessie wrote: > > > > I encountered a loop problem. > > > > The commands I edited are as follwows. > > > > > > > > foreach j in a b c d { > > > > foreach i in e f g { > > > > if `j'==b { > > > > count > > > > } > > > > else { > > > > su > > > > } > > > > } > > > > } > > > > > > > > Sometimes the error was showed "b ambiguous > > > > abbreviation",sometimes the error was "type mismatch". > > > > What is wrong? > > > > In my mind, -foreach lname in- can be followed by any_list. > > > > > > the problem is not with -foreach- but with the commands inside your > > > loop. Apperently the elements your are looping over are not always > > > unique variable names and sometimes they are string variable where > > > numeric variables where expected or vice versa. > > > > > > Hope this helps, > > > Maarten > > > > > > -------------------------- > > > Maarten L. Buis > > > Institut fuer Soziologie > > > Universitaet Tuebingen > > > Wilhelmstrasse 36 > > > 72074 Tuebingen > > > Germany > > > > > > http://www.maartenbuis.nl > > > -------------------------- > > > > > > > > > > > > > > > * > > > * 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/ > > * > * 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/ * * 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: a loop error of -foreach-***From:*Grace Jessie <gracejessie@hotmail.com>

**Re: st: a loop error of -foreach-***From:*Maarten buis <maartenbuis@yahoo.co.uk>

**RE: st: a loop error of -foreach-***From:*Grace Jessie <gracejessie@hotmail.com>

**RE: st: a loop error of -foreach-***From:*Grace Jessie <gracejessie@hotmail.com>

**RE: st: a loop error of -foreach-***From:*"Sarah Edgington" <sedging@ucla.edu>

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