Sure
data _null_;
length vars $ 20000;
do i=1 to 52-1;
do j=i+1 to 52;
vars = catx(' ', vars, cats('pair_', i, '_', j));
end;
end;
call symputx('vars', vars);
run;
data want(keep=itempos key pair:);
set have;
array c {*} col:;
array p {1326} $ 50 &vars.;
do i=1 to 52-1;
do j=i+1 to 52;
idx=sum(idx, 1);
if c[i]=c[j]=key then p[idx] = "same resp and both wrong";
else if c[i]=c[j] ne key then p[idx] = "same resp and both wrong";
else if i=key | j=key then p[idx] = "different resp and one of them correct";
else p[idx] = "different resp and both wrong";
end;
end;
run;
oops, here is the file.
Seems like you reposted a duplicate of https://communities.sas.com/t5/SAS-Programming/How-to-write-SAS-code-about-this-combination/m-p/6256...
My apologies if my solution didn't work for you.
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