it seems that once I used the missing option in one proc means, it affected sub-sequential proc means without this option. how to shut it off?

-----Original Message----- From: Jack F. Hamilton [mailto:jfh@alumni.stanford.org] Sent: December-11-10 9:02 PM To: Howard Schreier Cc: Jack Hamilton; bbser2009 Subject: Re: proc means, the level of missing values

Interesting article. I'm not sure I agree with the distinction between implicit and explicit CLASS statements, which I don't see as important enough to deserve to be mentioned in the first paragraph, but then I didn't go to the trouble to write the article.

On Dec 11, 2010, at 16:16 , Howard Schreier wrote:

> Note that the MISSING option for PROC FREQ is somewhat different in nature (vis a vis MEANS and others), because the filtering it governs is different. > > http://www.sascommunity.org/wiki/Missing_Values_in_Classification_Variables