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From |
"Feiveson, Alan H. (JSC-SK311)" <alan.h.feiveson@nasa.gov> |

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

Subject |
RE: st: RE: Re: label (automatically) |

Date |
Thu, 25 Sep 2008 16:14:10 -0500 |

1. -defv- may let you (re)generate a variable, but putting the definition in notes is a nuisance: 2. -defv- seems to require spaces By contrast -labgen- puts the definition directly in the variable label and doesn't require spaces - however -labgen won't allow regeneration. Al F. . drop temp* . defv temp1 = log(day) . defv temp2=log(day) r(7); . labgen temp3=log(day) . des temp* storage display value variable name type format label variable label ------------------------------------------------------------------------ --------------------------- temp1 float %9.0g * temp3 float %9.0g log(day) . notes temp1 temp1: 1. generate temp1 = log(day) . -----Original Message----- From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Nick Cox Sent: Thursday, September 25, 2008 2:39 PM To: statalist@hsphsun2.harvard.edu Subject: Re: st: RE: Re: label (automatically) I'd forgotten about this. Thanks for the plug. I think this predates SSC. Either way, it is probably not on SSC because I just posted it there and did not bother to write a help file. Stuff like that never makes the grade to SSC and thus to -njc_stuff- on SSC. Twelve years on, that's still my inclination. A very good reason for that, as already pointed out, is that -defv- already exists to do the job. A key detail for Kit's program is that -gettoken- should parse on equals signs as well. Also, what happens if people write -mygen double lprice = log(price)-? Nick n.j.cox@durham.ac.uk Feiveson, Alan H. (JSC-SK311) wrote: > Yes - Nick Cox wrote -labgen.ado- which does excactly that. FOr some > reason this is not on SSC. Perhaps Nick could make it avaliable. > > *! version 1.0.1 7/17/1996 > program define labgen > version 4.0 > parse "`*'", parse(" =") > if "`2'"=="=" { > local var `1' > mac shift 2 > } > else if "`3'"=="=" { > local type `1' > mac shift > local var `1' > mac shift 2 > } > else { error 198 } > gen `type' `var' = `*' > label var `var' "`*'" > end Christopher > Not to my knowledge. > Probably the best way of documenting this is to use variable -notes-. > Try this: > > program mygen > qui gen `0' > gettoken name rest: 0 > note `name': `0' > end > > mygen lprice = log(price) > mygen gpm = 1/mpg > notes > > > Kit Baum, Boston College Economics and DIW Berlin > http://ideas.repec.org/e/pba1.html > An Introduction to Modern Econometrics Using Stata: > http://www.stata-press.com/books/imeus.html > > On Sep 25, 2008, at 1:47 PM, Alessandro Oliveira wrote: > I wonder if you could help me with an Stata issue. >> Is it possible for stata to automatically label a new variable with >> the formula used in "gen"? ex: gen y = x+1 automatically yielding >> label variable y with "gen y = x+1" * * 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: Re: label (automatically)***From:*Nick Cox <n.j.cox@stata.com>

**st: Regexr Stata***From:*Diana Eastman <deastman@gma-us.com>

**References**:**st: Re: label***From:*Christopher Baum <baum@bc.edu>

**st: RE: Re: label (automatically)***From:*"Feiveson, Alan H. (JSC-SK311)" <alan.h.feiveson@nasa.gov>

**Re: st: RE: Re: label (automatically)***From:*Nick Cox <n.j.cox@stata.com>

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