Date:         Wed, 25 Apr 2007 13:33:55 -0400
Reply-To:     "data _null_;" <datanull@GMAIL.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         "data _null_;" <datanull@GMAIL.COM>
Subject:      Re: counting of a variable
Comments: To: ks purnima <ks.purnima@gmail.com>
In-Reply-To:  <37a21d070704251023i63bbe137ieb7ed6de34f239c0@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Create a format to group the patientnumbers by weight.  There are many
ways to count with grouping I choose PROC SUMMARY.  For example.

proc format;
   value wtgrp
      low-<80 = 'LT 80'
      80-high = 'GE 80'
      ;
   run;
proc summary data=sashelp.class nway;
   class weight;
   format weight wtgrp.;
   output out=work.counts(drop=_type_);
   run;
proc print;
   run;

On 4/25/07, ks purnima <ks.purnima@gmail.com> wrote:
> Hi,
>
> I have patinfo dataset , it contains  variables  like
> patientnumber,age,sex,gender,weight,.........
>
> how do we find  the number of patients whose weight is less than 50 kgs and
> greater 50 kgs.
>