hi,

I know how to use the "for" loop function like:

for(i in 1:ncol(mat)){
mat[i]<-b[i,2]
}

but, in this case

r1<-b[1,1]
r2<-b[2,1]
r3<-b[3,1]
r4<-b[4,1]

*
*
*

r3002<-b[3002,1]
r3003<-b[3003,1]

- must make vectors

how should I make a efficient code for that?

Is there anything in R like SAS MACRO function?

Please help me.



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