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From |
Michael Hanson <mshanson@mac.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Data management question |

Date |
Thu, 16 Jul 2009 10:11:26 -0400 |

gen n = length(subinstr(x, " ", "", .))

Hope this helps, Mike On Jul 16, 2009, at 8:39 AM, Nick Cox wrote:

As a footnote, observe that if the issue is counting "X" in values of -kisses- such as "XX", "XXXXX", etc. then gen nkisses = length(kisses) will be a more direct and efficient solution so long as no other characters are observed. -length(trim(kisses))- will protect against accidental leading and trailing spaces. Nick n.j.cox@durham.ac.uk Susan Olivia Thanks Tirthankar, Using Nick Cox's command is way more efficient. My earlier attempts were very inefficient. Tirthankar ChakravartyThere 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 noccurOn Thu, Jul 16, 2009 at 2:26 AM, SusanOlivia<olivia@primal.ucdavis.edu>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.

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**References**:**Re: Fwd: st: Data management question***From:*"Susan Olivia" <olivia@primal.ucdavis.edu>

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

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