OPTIONS LS=72;
TITLE 'EXAMPLE 3. SIMPLE INVERSE LINEAR REGRESSION: STEAM DATA';
DATA STEAM;
INPUT X Y;
CARDS;
35.3  10.98 
29.7  11.13 
30.8  12.51 
58.8   8.40 
61.4   9.27 
71.3   8.73 
74.4   6.36 
76.7   8.50 
70.7   7.82 
57.5   9.14 
46.4   8.24 
28.9  12.19 
28.1  11.88 
39.1   9.57 
46.8  10.94 
48.5   9.58 
59.3  10.09 
70.0   8.11 
70.0   6.83 
74.5   8.88 
72.1   7.68 
58.1   8.47 
44.6   8.86 
33.4  10.36 
28.6  11.08
;
PROC REG DATA=STEAM;
VAR Y X;
MODEL Y=X/ADJRSQ R CLI CLM RMSE;
OUTPUT OUT=OUTFILE PREDICTED=YPRED RESIDUAL=YRES;
PROC UNIVARIATE DATA=OUTFILE PLOT FREQ NORMAL;
VAR YRES;
RUN;