So I have a table T (attached), which has the SSVEP amplitude in the first column, the subject number in the second, then the contrast condition (3rd), value condition(4th) and left/right(5th).
As there are multiple permutations of contrast/value/LR for each subject, I've been trying to do a repeated-measures ANOVA with fitrm and ranova, but I'm running into issues and I don't really understand. Even for the most basic model type I can think of:
rm = fitrm(T,'SSVEP ~ Contrast+Value+LR+Contrast*Value');
ranovatbl = ranova(rm)
I get the following output:
which is clearly incorrect!
From the few examples I have seen online (https://uk.mathworks.com/help/stats/fitrm.html#bt9ol4i-4), there always seems to be multiple measurements at different time points - but as in this repeated measures design, I have multiple conditions rather than multiple timepoints, I'm really pulling up blanks! I am also aware that I should probably be using ranovatbl = ranova(rm,'WithinModel',WM), but I have had absolutely zero success specifying this WM component!
Any help would be amazing!