Preparation of the data for N-Way ANOVA

I have 3 matrices for 3 different techniques consisting of the data for 5 different frequency range of neuronal data each;

1 st matrix (Technique A) with the size of (100 x 5) 

2 nd matrix (Technique B) with the size of (50 x 5)

3 rd matrix (Technique C) with the size of (75 x 5)

whereas 5 is the different frequency range.

I refer to the documentation of 'anovan' and to the section 'preparation of the data'. However, I am bit confused about how can I do convert/combine these 3 different matrices so I can perform N-way ANOVA.

Can anyone help me understand quickly? Thanks

Answer 1

[Bernhard Suhm]

Per documentation, you provide anovan a set of measurements and multiple assignments to different groups. I'm not sure you actually need multiple ANOVA, aren't you just investigating the effect of one variable, namely the technique (A, B, or C)? If that was the case, you can simply concatenate your measurements for A, B, and C, and create a 6th column to indicate which group the observation belongs to (A,B, or C).