[R] Re : LOOPS

[ssim@lic.co.nz]

Dear lists,

I want to construct a loop in R, but don't know how to do it. I can do it
in SAS, but I prefer in R  (which I am hoping I will off SAS for good
soon). Could anyone help me to convert the SAS codes to equivalent R codes.

Basically, the following codes were written to establish the sire gametes
or phases for daughter design for one markers two alleles.

Here are the SAS code:

do i=1 to 744;
      do j=745 to 1540;
            m[j]=0;
            if sire[j]=anml[i] then do;
                if m1[j]=m1[i]  and m2[j]=m2[i] then m[j]=0;
                else if m1[j]=m1[i] then m[j] =1;
                else if m1[j]=m2[i] then m[j==2;
                else if m2[j]=m1[i] then m[j]=1;
                else if m2[j]=m2[i] then m[j]=2;
                else m[j]=0;
            end do;
     end;
end;


Thanks Stella
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