Hi all, I tried to run a ols using proc fcmp. I get a missing SSCP matrix. Hence the program doesnot run. I appreicate all the help. Regards, Amit code: data temp; set sashelp.cars; keep MPG_City Horsepower Cylinders Weight Length; run; proc fcmp; /* Allocate spaces for matrices */ array input[428, 5] / nosym; array y[428] / nosym; array x[428, 4] / nosym; array xtrans[4, 428] / nosym; array sscp[4, 4] / nosym; array sscpinv[4, 4] / nosym; array beta[4] / nosym; array xtrans_y[4, 1] / nosym; /* Input simulation dataset */ rc1 = read_array("temp", input, "MPG_City", "Horsepower", "Cylinders", "Weight", "Length"); rc2 = read_array("temp", y, "MPG_City"); rc3 = read_array("temp", x, "Horsepower", "Cylinders", "Weight", "Length"); /* Calculate OLS regression coefficients */ call transpose(x, xtrans); call mult(xtrans, x, sscp); call inv(sscp, sscpinv); call mult(xtrans, y, xtrans_y); call mult(sscpinv, xtrans_y, beta); /* Output resulting matrix as dataset */ rc44 = write_array("sscp1", sscp); rc46 = write_array("xtrans_y1", xtrans_y); rc4 = write_array("result", beta); if rc1 + rc2 + rc3 + rc4 > 0 then put 'ERROR: I/O error'; else put 'NOTE: I/O was successful'; quit;
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