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RE: st: RE: Using results from correlation matrices to pinpoint variables


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: RE: Using results from correlation matrices to pinpoint variables
Date   Sun, 19 Jun 2005 16:24:37 +0100

A thread is best closed by saying what the 
solution was, not that you found a solution.... 

Nick 
n.j.cox@durham.ac.uk 

Alejandro Delafuente
 
> many thanks Nick. I sorted out the problem.
> 
> In message 
> <031173627889364697C50B3B266CBB8A101BAF@GEOGMAIL.geog.ad.dur.ac.uk> 
> statalist@hsphsun2.harvard.edu writes:
> > My guess is that what you are getting what you 
> > ask for, but that it is not what you want. 
> > 
> > The difference between 
> > 
> > 	if <condition> <command> 
> > 
> > and 
> > 
> > 	<command> if <condition> 
> > 
> > is profound. For one documentation, see
> > http://www.stata.com/support/faqs/lang/ifqualifier.html
> > 
> > I am not clear what you want precisely. If you 
> > want to drop a variable if and only if all observations
> > are missing, then 
> > 
> > . search dropmiss 
> > 
> > for a convenience command. 
> > 
> > Nick 
> > n.j.cox@durham.ac.uk 
> > 
> > Alejandro Delafuente
> > > 
> > > Dear Nick, thanks for your advice. With some little 
> > > adjustments it worked out! 
> > > Also, taking advantage of your generosity let me ask you a 
> > > quick question: am 
> > > trying to drop some monthly variables in a time sequence 
> > > (from january 1961 to 
> > > dec 2001) with missings in them. My code looks as follows:
> > > foreach var of varlist jan* feb* ... dec* {
> > > 	if `var' ==. {
> > > 	drop `var' 
> > > 	}
> > > }
> > > But for some reason it is not working. Can you tell why?
> > > As always, many thanks.

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