Displaying 1 result from an estimated 1 matches for "x3sq".
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x3s
2004 Apr 05
0
Selecting Best Regression Equation : leaps() in R and stepwise() in S+
...plied R codes are-
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> options(prompt=" R > " )
R > leafbrn1<-read.table("c:\\leafbrn.txt",header=T)
R > leafbrn.data1<-data.frame(leafbrn1)
R > attach(leafbrn.data1)
R > x1sq<-x1^2;x2sq<-x2^2;x3sq<-x3^2;x1x2<-x1*x2;x1x3<-x1*x3;x2x3<-x2*x3;
R > leafbrn <- cbind(leafbrn1,x1sq,x2sq,x3sq,x1x2,x1x3,x2x3)
R > detach(leafbrn.data1)
R > leafbrn.data<-data.frame(leafbrn)
R > attach(leafbrn.data)
R > X<-cbind(x1,x2,x3,x1sq,x2sq,x3sq,x1x2,x1x3,x2x...