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From |
joe j <joe.stata@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: mata's st_data |

Date |
Fri, 10 Sep 2010 22:59:22 +0200 |

Thanks so very much for your further help. (I couldn't figure out though the need for the ",." at the end; the code worked without them as well.) J. On Fri, Sep 10, 2010 at 9:41 PM, Tirthankar Chakravarty <tirthankar.chakravarty@gmail.com> wrote: > Joe, > > I had to update my neglected copy of Stata 10.1 for this one, and > while the help file for -st_macroexpand()- hasn't changed between > Stata 10.1 and Stata 11.1, the code I sent you works in the latter, > but not in the former. > > Turns out that in Stata 11, you don't need -st_macroexpand()- at all. The code: > > ******************************************* > clear* > set obs 10 > foreach x of newlist a b c d { > g var_`x' = runiform() > } > li > mata > st_data(.,"var_*",.) > end > ******************************************* > > is smart enough to do what you want it to do. The -st_macroexpand()- > was gratuitous in the code I sent you. For Stata 10.1, then you can > try this clumsy workaround by putting the variables you want into > locals beforehand: > > ******************************************* > clear* > set obs 10 > foreach x of newlist a b c d { > g var_`x' = runiform() > } > li > unab varnames: var_* > mata > st_data(., tokens(st_local("varnames")),.) > end > ******************************************* > > There has to be a better solution for Stata 10 - I can't think of it right now. > > T > > 2010/9/10 joe j <joe.stata@gmail.com>: >> Many thanks, Tirthankar. But has this code worked for you? I am >> getting an error: >> var_* invalid name >> >> I am using Stata SE versin 10.1 >> >> On Fri, Sep 10, 2010 at 3:59 PM, Tirthankar Chakravarty >> <tirthankar.chakravarty@gmail.com> wrote: >>> Use -st_macroexpand()-: >>> ******************************************* >>> clear* >>> set obs 10 >>> foreach x of newlist a b c d { >>> g var_`x' = runiform() >>> } >>> li >>> mata >>> st_data(.,st_macroexpand("var_*"),.) >>> end >>> ******************************************* >>> >>> T >>> >>> On Fri, Sep 10, 2010 at 6:47 AM, joe j <joe.stata@gmail.com> wrote: >>>> I was wondering if there is a way to use wildcard for variable names >>>> in mata's "st_data" function. I have a large number of variables, like >>>> US_ctry, UK_ctry, etc, all of which could be defined in Stata as >>>> "*ctry". >>>> >>>> But when I try the following in mata: >>>> A = st_data(.,("*ctry")). >>>> >>>> I get the warning: >>>> >>>> *ctry invalid name >>>> >>>> The (tedious) alternative is: A = st_data(.,("US_ctry", "UK_ctry") >>>> >>>> Any suggestion would be appreciated, because the number of variables >>>> are too many. >>>> >>>> Joe >>>> >>>> * >>>> * 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/ >>>> >>> >>> >>> >>> -- >>> To every ω-consistent recursive class κ of formulae there correspond >>> recursive class signs r, such that neither v Gen r nor Neg(v Gen r) >>> belongs to Flg(κ) (where v is the free variable of r). >>> >>> * >>> * 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/ >> > > > > -- > To every ω-consistent recursive class κ of formulae there correspond > recursive class signs r, such that neither v Gen r nor Neg(v Gen r) > belongs to Flg(κ) (where v is the free variable of r). > > * > * 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: mata's st_data***From:*joe j <joe.stata@gmail.com>

**Re: st: mata's st_data***From:*Tirthankar Chakravarty <tirthankar.chakravarty@gmail.com>

**Re: st: mata's st_data***From:*joe j <joe.stata@gmail.com>

**Re: st: mata's st_data***From:*Tirthankar Chakravarty <tirthankar.chakravarty@gmail.com>

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