Re: st: For loop with wildcards for string suffixes

[David Kantor <kantor.d@att.net>]

Yes; this is what -foreach- was made for.

If you are just using suffixes, say AA through DD:

foreach suf in AA BB CC DD {
  PhonePref`suf' = Preference`suf' * Phone`suf'
}

A neat alternative is to put the suffixes into a macro:

local suffixlist "AA BB CC DD"

foreach suf of local suffixlist {
  PhonePref`suf' = Preference`suf' * Phone`suf'
}

Finally, you can nest these loops for more complex operations, but 
I'll let you figure that out.
Good luck.
--David

At 10:05 AM 9/21/2006, you wrote:

> I'm trying to figure out the syntax for generating interaction
> variables using wildcards for suffixes.
>
> I have variables PhoneAA PhoneBB PhoneCC Phone DD and PreferenceAA
> PreferenceBB PreferenceCC and Preference DD.
>
> I'd like to generate the interaction variable that would occur from a
> product of these two vectors:
> PhonePrefAA=PreferenceAA*PhoneAA, PhonePrefBB=PreferenceBB*PhoneBB, etc.
>
> The problem is that I have many of these types of variables and six
> suffixes, and I don't want to type out all the suffixes individually.
> Is there a way I can do this using a for loop?
>
> Thanks,
> Rachel
> [...]
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