Hello,
I've conducted an experiment pulling samples across a sheet of dough. In my dataset, I have created a dummy variable "belt position" - operator side, middle, non-operator side - for the analysis. I wanted to check correlations for the three separate positions using the multivariate analysis and used the dummy variables in the "by" section. However, if I split the dataset into three separate datasets, the correlations are different than the multivariate analysis. Why is this the case, and is there a incorrect and correct method of comparing the correlations? Thanks!
Best,
Eliot
