GMACRO
GENDAT
Random 10 C1;
Normal 0 1.
Print C1.
Describe C1
Histogram C1
Random 50 C1;
Normal 0 1.
Print C1
Describe C1
Histogram C1
Random 500 C1;
Normal 0  3.
Random 500 C2;
Normal 0  1.
Random 500 C3;
Normal 0  1.
Name C1 = 'true'  C2 = 'x error'  C3 =  'y error'
Describe C1-C3
Add C1 C2 C4.
Add C1 C3 C5.
Name C4= 'X'  C5 = 'Y'
Info
Describe C4-C5
Count C4
Sum C4
Average C4
Medi  C4 
Standard C4
Maxi C4 
Mini C4 
Histogram  C4 
Histogram  C5 
Plot C5 * C4;
symbol.
Correlation  C4 C5
Regress C5 1 C4
Regress C5 1 C4;
Residuals C20;
Coefficients C22.
Let C21=C5-C20
Plot C21 * C4;
symbol.
Plot C20 * C4;
symbol.
ENDMACRO