topic Re: ANOVA one observation in SAS Procedures

ANOVA one observation

sasnewbie12 — Fri, 23 Mar 2018 18:37:28 GMT

I am conducting a two-factorial anova analysis with only one observation per cell.

How can I run the proc glm statement? I will add an interaction term for the two factors: factor a* factor b;

Proc glm data=mydata;

class factor1 factor2;

model y= factor1 factor2 factor1*factor2; run;

I am currently getting having an issue and the error SS and MS is coming up as 0.00;

I need to also break down the error SS into residual and interaction parts.

Thanks

Re: ANOVA one observation

sasnewbie12 — Fri, 23 Mar 2018 18:48:12 GMT

How can I get sas to display the SS and MS for each factor in the ANOVA table? There is only the model and error information.

Thanks

Re: ANOVA one observation

Rick_SAS — Fri, 23 Mar 2018 19:25:21 GMT

This sounds like a data problem. What do you mean by "one observation per cell"?

How many observations in the data set? How many observations in each factor?

You can count the observations in each factor and in all by using the following call to PROC FREQ:

proc freq data=mydata;
   tables factor1*factor2;
run;

Re: ANOVA one observation

sasnewbie12 — Fri, 23 Mar 2018 20:45:38 GMT

Its not a data issue. This is a two factor design, and there are one observations within each factor combination.

How can I get ANOVA to display the SS and MS for each effect? It only give me the full model and error effects. I tried using the test statement as follows:

Test h=[effect of interest] e=??? ;

I am not sure what to put in the error statement, I just want it with the default error of MSE(mean squared error).

Thanks

Re: ANOVA one observation

PaigeMiller — Sat, 24 Mar 2018 00:27:18 GMT

Show us your output from PROC GLM. Show us the result of running PROC FREQ as suggested above by Rick.

Do not reply with words but not showing us your output. Show us both outputs. Not one of the two outputs requested, show us both.