Proc IML dalam SAS System

1. 1.
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proc iml;
reset print;
use komstat.regresi;
read all var{y} into Y;
read all var{x1 x2} into X;
start regress;
nb = nrow(X);
nk = ncol(X);
satu = J(nb,1,1);
X = satu || X;
beta = inv(X`*X)*(X`*Y);
yduga = X*beta;
sisaan = y-yduga;
finish regress;
create komstat.ploty var{sisaan yduga};
append;
quit;
proc gplot data=komstat.ploty;
plot sisaan*yduga;
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2. Plot:

3. 2.
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proc iml;
x={5 9};
y={10 4};
r=x[1];
s=y[1];
start square(a,b);
a=b##2;
finish;
run square(r,s);
print r s;
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4. 3.
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proc iml;
z1=0;
i=0;
E=1.0;
do until (E<10**(-5));
i=i+1;
z2=z1+(2*i+1)/(i*(i+1));
E=z2-z1;
abs=E;
z1=z2;
end;
print z2;
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5. Output Window:

6. Output Window: