Unconsistent and "NaN" results.

[Juste_Lenoire]

Hi everyone,

I'm having two problems with my data analysis.

My first problem is perhaps one of comprehension. When I carry out an ANOVA, I think the first terms in the tables are a single factor analysis (equivalent to a one-way anova). So my question is, why don't I get the same results?
For example for "Genre" I obtain a p-value of 0.867 and 0.453 (2nd and 3th table).

My biggest problem concerns the first table, where I get no results (SS=0, df=NaN, no p-value,...). I have no idea what's wrong.

Thanks in advance

[jonathon]

Hi,

As you've discovered, first terms in a multiway ANOVA aren't the same as a one-way ANOVA.

As for the 0s and NaNs, i think this might be an issue of "empty cells in your design". R180 has a pretty good explanation here:

viewtopic.php?t=3706

cheers

jonathon