Bookmark and Share

Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down on April 23, and its replacement, statalist.org is already up and running.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: st: counting variables within a row


From   Steve Samuels <sjsamuels@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: counting variables within a row
Date   Tue, 8 Jun 2010 20:07:28 -0400

Casey, you will probably get a quick answer if you substitute simple
variable names (e.g. x y z) for your long names and resend your post.


Steve

> *
-- 
Steven Samuels
sjsamuels@gmail.com
18 Cantine's Island
Saugerties NY 12477
USA
Voice: 845-246-0774
Fax:    206-202-4783


On Tue, Jun 8, 2010 at 7:15 PM, Casey P. Durand <durandca@usc.edu> wrote:
> Hi folks,
>
> I have a dataset with 18 variables called met_aone-met_aeighteen.
> Within each observation, I'm trying to count the number of these
> variables with values which satisfy three criteria.  I thought I could
> handle this with -egen- and the lines of code I originally wrote are:
>
> egen lightcount_d1= rownonmiss ( met_aone-met_aeighteen) if (
> met_aone-met_aeighteen)> 0 & ( met_aone-met_aeighteen)< 3
> egen modcount_d1= rownonmiss (met_aone-met_aeighteen) if
> (met_aone-met_aeighteen)>= 3.0000 & (met_aone-met_aeighteen)< 6
> egen hardcount_d1= rownonmiss (met_aone-met_aeighteen) if
> (met_aone-met_aeighteen)>= 6.0000 & (met_aone-met_aeighteen)< .
>
> The problem as I quickly realized is that it is only counting
> variables when every single value in the row satisfies the if
> requirement.  What I can't figure out is how to assess each variable
> individually for meeting the criteria, but ultimately producing a new
> variable with the total within the observation which meets my
> criteria.
>
> Any thoughts on how to handle this?
>
> Thanks in advance.
>

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/


© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   Site index