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From |
"Susan Olivia" <olivia@primal.ucdavis.edu> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: Fwd: st: Data management question |

Date |
Wed, 15 Jul 2009 21:55:37 -0700 |

Thanks Tirthankar, Using Nick Cox's command is way more efficient. My earlier attempts were very inefficient. Cheers, Susan > ---------- Forwarded message ---------- > From: Tirthankar Chakravarty > <tirthankar.chakravarty@gmail.com> Date: Thu, Jul 16, 2009 > at 11:45 AM Subject: Re: st: Data management question > To: statalist@hsphsun2.harvard.edu > > > <> > There are probably many ways of doing this, but here is > way using Nick Cox's -egenmore- (SSC, Nick Winter is > attributed as the author of the -noccur()- function used > here) package: ******************** > clear* > set obs 100 > g crosses = " " > local cross "x" > forv i=1/ 100 { > qui: replace crosses="`cross'" in `i' > local cross "`cross'x" > } > // ssc install egemore, replace > egen noccur = noccur(crosses), string("x") > su noccur > ******************** > > T > > On Thu, Jul 16, 2009 at 2:26 AM, Susan > Olivia<olivia@primal.ucdavis.edu> wrote: > > Dear Stata lister, > > > > I have a variable (say number of days) and is a string > > variable. This variable is represented by XXXX > > (basically the number of X denotes the number of days). > > > > I would like to create a numeric value for this variable > > (i.e. 4 crosses = 4) . Is there a way I can easily do > > this in Stata? I tried the 'encode' and 'destring' > > commands, but these commands didn't do what I after. > > > > Thanks in advance for the tips, > > > > Susan > > > > > > * > > * 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 Ï?-consistent recursive class Îº of formulae > there correspond recursive class signs r, such that > neither v Gen r nor Neg(v Gen r) belongs to Flg(Îº) (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/

**Follow-Ups**:**RE: Fwd: st: Data management question***From:*"Nick Cox" <n.j.cox@durham.ac.uk>

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