> 2007/8/30, Stat List <[email protected]>:
> > Hi Statalist,
> >
> > If I have two variables with numeric contents, is there any Stata command to
> > compare them, and get the maximum into another variables?
> >
> > Example, comparing (elements by elements) var1 and var2, and then creating
> > var3=max(var1, var2)
> >
> > Var1 var2 var3
> > 12 32 32
> > 21 12 21
> > 3 32 32
> > 32 12 32
> > .. .. ..
> >
> > I think I can write the loop for all observations, but I think that Stata
> > have this kind of command that I just don't know yet.
> >
> > Any help? Thanks so much
You can do this directly using the -egen- command.
egen var3 = rowmax(var1 var2)
-egen- is a very useful command see...
Cox N.J. (2002) Speaking Stata: On getting functions to do the work.
The Stata Journal 2(4):411-427
...for details on how to get things done with -egen- and more
generally with -functions-.
Neil
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