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From |
Maarten Buis <maartenlbuis@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Batch renaming variables |

Date |
Thu, 18 Oct 2012 16:02:12 +0200 |

On Thu, Oct 18, 2012 at 3:36 PM, Wameq Raza wrote: > To elaborate, suppose I have 10 variables: v1, v2....v10 and I want to > rename every second var (ie v2, v4, v6, v8 and v10) to cost_a, > cost_b....cost_e. Below I make heavy use of the extended macro function as documented in -help extended_fcn- *------------------- begin example ----------------- // create some example data clear set obs 10 forvalues i = 1/10 { gen v`i' = runiform() } // do the rename local j = 0 forvalues i = 2(2)10 { // which letter from the alphabet local j = `j' + 1 // c(alpha) contains a string containing the //space-separated list of lowercase letters. local letter : word `j' of `c(alpha)' // create the new name local newname "cost_`letter'" // do the rename rename v`i' `newname' } // alternatively all in one clear set obs 10 forvalues i = 1/10 { gen v`i' = runiform() } local j = 0 forvalues i = 2(2)10 { rename v`i' cost_`: word `++j' of `c(alpha)'' } *-------------------- end example ------------------ (For more on examples I sent to the Statalist see: http://www.maartenbuis.nl/example_faq ) Hope this helps, Maarten --------------------------------- Maarten L. Buis WZB Reichpietschufer 50 10785 Berlin Germany http://www.maartenbuis.nl --------------------------------- * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/faqs/resources/statalist-faq/ * http://www.ats.ucla.edu/stat/stata/

**References**:**st: Batch renaming variables***From:*Wameq Raza <wameq.r@gmail.com>

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