I have not used IML before, but, it looks the result is in the log file.

[此贴子已经被作者于2008-9-12 8:02:52编辑过]

sample code from IML manual. Hope it helps

proc iml; /* begin IML session */
    start approx(x); /* begin module */
        y = 1; /* initialize y */
        do until(w < 1e-3); /* begin do loop */
            z = y; /* set z=y */
            y = .5#(z + x/z); /* estimate square root */
            w = abs(y - z); /* compute change in estimate */
        end; /* end do loop */
        return(y); /* return approximation */
    finish approx; /* end module */
    t = approx({3,5,7,9}); /* call function APPROX */
    print t; /* print matrix */
quit;