It worked, thanks! The next part gave this error, 1806 /*Then we use the stepwise option in SAS procedure Proc Reg to select the reasonable independent variables at
1806! significance level of 0.01*/
1807 proc reg data=new1;
1808 model Y= E1-E4 G1-G15
1809 e1e2-e1e4 e1g1-e1g15
1810 e2e3-e2e4 e2g1-e2g15
1811 e3e4 e3g1-e3g15
1812 e4g1-e4g15
1813 g1g2-g1g15
1814 g2g3-g2g15
1815 g3g4-g3g15
1816 g4g5-g4g15
1817 g5g6-g5g15
1818 g6g7-g6g15
1819 g7g8-g7g15
1820 g8g9-g8g15
1821 g9g10-g9g15
1822 g10g11-g10g15
1823 g11g12-g11g15
1824 g12g13-g12g15
1825 g13g14-g13g15
1826 g14g15 ;
1827
1828 /selection=stepwise SLENTRY=0.01;
-
180
NOTE: The previous statement has been deleted.
ERROR 180-322: Statement is not valid or it is used out of proper order.
1829 plot residual.*predicted.;
NOTE: The previous statement has been deleted.
1830 run; Can I replace it with the following? title 'Stepwise Regression on Independent Variables';
proc logistic data=new1 outest=new2 covout;
model Y = E1-E4 G1-G15
/ selection=stepwise
slentry=0.01
details
lackfit;
output out=pred p=phat lower=lcl upper=ucl
predprob=(individual crossvalidate);
run;
proc print data=new2;
title2 'Parameter Estimates and Covariance Matrix';
run;
proc print data=pred;
title2 'Predicted Probabilities and 95% Confidence Limits';
run;
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