Type III sum of squares from proc glm

statz — Tue, 15 Mar 2016 20:02:56 GMT

Hi,

I was looking for the equations used to calculate the Type III sum of squares obtained from the following code, but I could not find it. I only found the formula for Type I sum of squares, but I need the Type 3 SS. Can anyone lead me to where I can get the Type 3 SS equations, i.e., SS(A),SS(B),SS(A*B),SSE? I apologize that this is not really a SAS question. I appreciate your help. Thanks!

Here is the SAS code:

data try;
input y batch $ time;
DATALINES;
10 A 1
10 A 2
30 A 3
10 B 1
20 B 2
10 B 3
;
run;

proc glm;
class batch;
model y=batch|time/ solution;
run;

Here is the SAS output for Type 3 SS:

Re: Type III sum of squares from proc glm

Rick_SAS — Tue, 15 Mar 2016 20:15:59 GMT

It's in the chapter "Introduction to Statistical Modeling with SAS/STAT Software" in the section "Type III and IV SS and Estimable Functions"

topic Type III sum of squares from proc glm in Statistical Procedures

Type III sum of squares from proc glm

Re: Type III sum of squares from proc glm