Recent content by RGrieves

  1. R

    Which ANOVA to use - sum of squares,model,n-way,one-way?

    Hi all, I want to analyse some data using an Anova. The data are one continuous variable (the thing I was measuring) and one categorical variable (the 4 different group numbers), I also have 3 more continuous data which I want to test for effects on my dependent variable. I really just want to...
  2. R

    Permutation F test - what is the correct F statistic to use?

    Hi all, I'm currently using an ANOVA to analyse some data sets, recently it occurred to me that the data may not be normally distributed - at all. So I decided to 'upgrade' to using a permutation F test which is apparently much more robust in the face of not-normally distributed data. The...
  3. R

    Simple 4 group comparison of means problem

    I'll start by saying that I'm a neuroscience PhD student and have searched a long time for a solution to this problem but I can't find one. If you just have time to give a rough idea or point in the right direction then I'm grateful for any help. I am measuring the frequency of the same...