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st: String problem

From   "Kelvin Foo" <>
To   statalist <>
Subject   st: String problem
Date   Sun, 3 Sep 2006 21:25:53 +0100

Dear Statalisters,

I have a macro `covars' which is a list of variables, var1 var2
var3... var19 var20
I would like to exclude the last variable, var20, from `covars' so
this is what I did:

local revcovs=reverse("`covars'")
gettoken dropped revcovs: revcovs
local covars=reverse("`revcovs'")

I'm sure there must be some way more elegant, just that I can't think
of it. Any suggestions?

Elegance aside, my variable list, if too long, would get truncated
because I assigned the macro revcovs with the "=" sign in the first
line of my above code. Is there anyway to avoid the "=' sign in that

Thanks in advance for any suggestions!

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