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st: Re: substr() addition


From   "Michael Blasnik" <michael.blasnik@verizon.net>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Re: substr() addition
Date   Mon, 30 Sep 2002 07:55:16 -0400

Why not just :

gen str20 newdose = substr(dose,1,length(dose)-2)


Michael Blasnik

----- Original Message -----
From: <Adrian.P.Mander@gsk.com>
Sent: Monday, September 30, 2002 7:23 AM
Subject: st: substr() addition


> Is there a better way of trucating a string variable? I just wanted to
> delete the
> last two characters of a variable and had to do use the reverse() function
>
> gen str20 newdose = reverse(substr(reverse(dose),3,.)
>
> I was wondering whether it would have been better to have the option in
> substr() to go backwards along the
> string perhaps instead of having a .  having a -. :) hence instead of
going
> to the end of the string with the .
> you could actually go to the start of the string....?
>
> cheers
> Ade
>


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