Thanks for the plug; but also credit where credit
is due. Jeroen Weesie is joint author of -renvars-.
Nick
[email protected]
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of
> Wallace, John
> Sent: 20 October 2003 22:31
> To: '[email protected]'
> Subject: st: RE: How to rename these variables?
>
>
> I have recently been using Nick Cox's -renvars- command for
> similar sorts of
> renaming puzzles. Try .findit renvars to get an
> installation module.
>
> -JW
>
> -----Original Message-----
> From: [email protected] [mailto:[email protected]]
> Sent: Saturday, October 18, 2003 11:47 AM
> To: [email protected]
> Subject: st: How to rename these variables?
>
> Dear all,
>
> I have a set of variables that I want to rename.
>
> I want to transform these v1_1 v2_1 v1_2 v2_2 etc..
> to v1_01 v2_01 v1_02 v2_02 etc...
>
> I try the lenght, index, and substr functions. But I do not know
> how to concatenate the results.
>
>
> gen l = length("v_01")
> sum l
> gen p = index("v0_1","_")
> sum p
> if ( l - p == 1 ) { di "Difference is 1" }
> gen str4 vr = substr("v0_1",1,3)
> tab vr
> gen str1 vl = substr("v0_1",1,l)
> tab vl
> replace vl = substr("v0_1",l,1)
> tab vl
>
> Is there any way to do this? Stata7 seems not to understand
> the concat()
> function.
>
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