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From |
Abhimanyu Arora <abhimanyu.arora1987@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: RE: local variables and running do files |

Date |
Sat, 29 Oct 2011 14:15:47 +0200 |

Hi statalist I guess Ana could make use of global macros for her problem (even as if I recall there was an advice in statalist preferring `locals', but I do not clearly recall the exact reason) Cheers Abhimanyu On Sat, Oct 29, 2011 at 3:12 AM, Nick Cox <njcoxstata@gmail.com> wrote: > It's the same question. The use of a local requires its prior > definition in the same locale. > "Locale", although a term used elsewhere in computing, is in this > context my term earlier defined in the thread. > > Nick > > On Fri, Oct 28, 2011 at 7:40 PM, Maria Ana Vitorino > <vitorino@wharton.upenn.edu> wrote: >> I am using Stata 11. >> But in any case what if I want to run some regressions, for example: >> >> reg y x1 x2 x3 >> >> is equiv to >> >> --regtest.do >> local x "x1 x2 x3" >> reg y `x' >> ---- >> >> >> but if after running the first 2 lines I want to run the command " sum `x' " >> it does not work. Is there anyway around this so that I don't have to >> define the local macro again? >> >> Thanks, >> Ana >> >> >> >> On Oct 28, 2011, at 2:30 PM, Nick Cox wrote: >> >>> The term "local variable" is to be avoided, as explained at >>> >>> http://www.stata.com/statalist/archive/2008-08/msg01258.html >>> >>> What you are seeing is a defining feature of a local macro: it is visible >>> only locally, i.e. within the locale in which it is defined, i.e. not >>> visible outside the interactive session, program, do file or do file editor >>> contents within which it is defined. >>> >>> You need to pass the contents of your local macro to the do-file as an >>> argument. If you write e.g. >>> >>> ------------ mydo.do >>> su `1' >>> ------------ >>> >>> And then go >>> >>> mydo "var1 var2" >>> >>> then the do file uses the argument you feed to it. Arguments are separated >>> by spaces and bound by " ". This is all explained in the chapter(s) on >>> do-files in [U], which is part of your Stata, as without declaring otherwise >>> it is assumed that you are using Stata 12. >>> >>> Nick >>> n.j.cox@durham.ac.uk >>> >>> Maria Ana Vitorino >>> >>> I would like to run a do file in batches (i.e. a few lines at a time) >>> but it seems that then the local variables that I defined in the >>> beginning do not carry over ... >>> Any solution for this? >>> >>> Here is some output for a simple example so that you can better >>> understand what is my issue. >>> >>> Thanks!! >>> Ana >>> >>> >>> . do "/var/folders/Xn/Xnl4Mq-lGR4-mNII1zm-Wk+++TI/-Tmp-//SD17268.000000" >>> >>> . sum >>> >>> Variable | Obs Mean Std. Dev. Min Max >>> -------------+-------------------------------------------------------- >>> var1 | 24 12.5 7.071068 1 24 >>> var2 | 24 36.5 7.071068 25 48 >>> var3 | 24 61.5 7.071068 50 73 >>> >>> . local var "var1 var2" >>> >>> . >>> end of do-file >>> >>> . do "/var/folders/Xn/Xnl4Mq-lGR4-mNII1zm-Wk+++TI/-Tmp-//SD17268.000000" >>> >>> . sum `var' >>> >>> Variable | Obs Mean Std. Dev. Min Max >>> -------------+-------------------------------------------------------- >>> var1 | 24 12.5 7.071068 1 24 >>> var2 | 24 36.5 7.071068 25 48 >>> var3 | 24 61.5 7.071068 50 73 >>> >>> >>> * >>> * 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/

**Follow-Ups**:**Re: st: RE: local variables and running do files***From:*Nick Cox <njcoxstata@gmail.com>

**References**:**st: local variables and running do files***From:*Maria Ana Vitorino <vitorino@wharton.upenn.edu>

**st: RE: local variables and running do files***From:*Nick Cox <n.j.cox@durham.ac.uk>

**Re: st: RE: local variables and running do files***From:*Maria Ana Vitorino <vitorino@wharton.upenn.edu>

**Re: st: RE: local variables and running do files***From:*Nick Cox <njcoxstata@gmail.com>

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