Thread Subject: Creating Irregular Matrices and Anova1

I am trying to create an irregular array/matrix from 5 differently sized matrices. I only want to take one row from each original matrix, but the number of cells in each row differ between matrices. Is it possible to create an irregular matrix in this way in Matlab?

If it is possible, I was hoping to then transpose this irregular matrix and use the anova1 function to compare the means of each column and to provide statistics for use in multcompare. Is it possible to use anova1 with an irregular matrix like this?

Thanks

Tom Philp wrote:
> I am trying to create an irregular array/matrix from 5 differently sized matrices. I only want to take one row from each original matrix, but the number of cells in each row differ between matrices. Is it possible to create an irregular matrix in this way in Matlab?

There are several ways you might do this, but if your goal is to call ANOVA1, then you probably want to use a "grouping variable" instead. Put all your values in a single vector, and create another "parallel" vector that has the value 1 for values from the first array, and so on.

Hope this helps.