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GSD
Calcite | Level 5 GSD
Calcite | Level 5

Hi All,

I am using the following SAS to code to compute the variance components of four categorical variables. I need to compute the R2 of the model. Can I directly use the Sum Squares Error and Sum Squares Total given in the output or should I be using a different technique?

proc sort data=ANOVATEST;

by Y I_Code C_name S_C;

proc nested data=Anovatest;

class Y I_Code C_name S_C;

var S_RA;

run;

quit;

In the above, S_RA is a continuous variable and Y represents year, I_Code C_name S_C are categorical variables representing effects.

Variance SourceDFSum of Squares
Total234368120.03
Y1111.704
I_Code785626.329
C_Name187356542.12
S_C3532893.299
Error37346.5771

Thanks in advance for your time.

1 ACCEPTED SOLUTION

Accepted Solutions
SteveDenham
Jade | Level 19

Without testing, R^2 = (TSS - ESS)/TSS.  Explained variation over total variation.

Steve Denham

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1 REPLY 1
SteveDenham
Jade | Level 19

Without testing, R^2 = (TSS - ESS)/TSS.  Explained variation over total variation.

Steve Denham

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