I am new to using SAS for linear programming, but trying to teach my self some of the basics. I tried running the code below and the log said "Procedure OPTMODEL not found". This is just some simple code out of a SAS tutorial. Anyone know why it is having a problem with this? Thanks. proc optmodel; num a{1..3, 1..4}=[-5 3 1 8 5 5 4 6 4 6 0 5]; var x{1..4} >= 0; max f = sum{i in 1..4}x; con c{i in 1..3}: sum{j in 1..4}a[i,j]*x <= 1; solve with lp / solver = ps presolver = none printfreq = 1; print x; print c.dual; quit;
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