Re: st: Re: saving memory local vs usual variable

["Martin Weiss" <martin.weiss1@gmx.de>]

Both Ashim and Fabian Brenner could probably profit from Nick`s 
comprehensive post at

http://www.stata.com/statalist/archive/2008-08/msg01258.html

This posts would, btw, also look good in the FAQ section for more convenient 
reference...

HTH
Martin
_______________________
----- Original Message ----- 
From: "Ashim Kapoor" <ashimkapoor@gmail.com>
To: <statalist@hsphsun2.harvard.edu>
Sent: Friday, October 03, 2008 6:59 PM
Subject: Re: st: Re: saving memory local vs usual variable



> On 2nd thought.
>
> egen j=max(x) DOES NOT take more than one variable.
>
> It is gen which can do the max of 2 or more variables.
>
> So since egen returns a variable with ONE constant value, it would
> seem that it should be allowed to be stored in a scalar / local macro.
>
> Thank you,
> Ashim.
>
> On Fri, Oct 3, 2008 at 10:26 PM, Ashim Kapoor <ashimkapoor@gmail.com> 
> wrote:
>
> > Ahh I see what you are saying. For multiple variables it won't work. I
> > usually use it to find the max of ONE variable. I guess that confused
> > me.
> >
> > Thank you,
> > Ashim.
> >
> > On Fri, Oct 3, 2008 at 10:21 PM, Eva Poen <eva.poen@gmail.com> wrote:
> > > 2008/10/3 Ashim Kapoor <ashimkapoor@gmail.com>:
> > > > And I am still puzzled as to why someone would not allow us to set
> > > > local  j=max(list)
> > > > cos that seems intuitive.
> > > If the list includes variable names, how is Stata supposed to know
> > > which observation's maximum you mean? -egen- is meant to work with
> > > variables. -egen- functions are not available outside -egen.
> > >
> > > On the other hand, there are Stata functions (-help functions-) which
> > > will work in general expressions. Therefore,
> > >
> > > local j = max(4, 92, -35, 399, 0)
> > >
> > > will correctly store 399 in local macro j.
> > >
> > > Eva
> > > *
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> *
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