/*----------------------------------------------------------------                                                                      
ex2_nc.sas  Code to run exemplar 2 on uncorrected data                                                                                  
Written by Gillian Raab                                                                                                                 
 August 2004                                                                                                                            
                                                                                                                                        
                                                                                                                                        
first tell sas where the data for this exemplar is stored                                                                               
  Change this to the directory  where YOU have the data                                                                                 
-----------------------------------------------------------------*/                                                                     
libname exemp2 "c:/documents and settings/gillian raab/my documents/aprojects/peas/ex2datafiles/data";                                 
/*-------------------------------------------------                                                                                     
exemplar first for simple proportions of internet use                                                                                   
                                                                                                                                        
INTUSE is a 0/1 variable so its mean gives the percentage use                                                                           
This gives a warning in the log file                                                                                                    
so the LIST option is added to give details of lonely PSUs                                                                              
----------------------------------------------------*/                                                                                  
title 'Simple proportion  internet use';                                                                                                
proc surveymeans data=exemp2.ex2_nc mean stderr nobs clm;                                                                               
weight ind_wt;                                                                                                                          
cluster psu;                                                                                                                            
var intuse;                                                                                                                             
strata stratum / list;                                                                                                                  
run;