converting a 35x28 matrix into 35x35 matrix

I have one set of data with 1x1.25 degrees resolution and another set with 1x1 degree resolution. On extracting data over India the first set of data is giving a 35x28 matrix while the second set is giving 35x35 matrix. Now to catenate the two data along 3rd dimension the matrix size needs to be same. How can I change the 35x28 matrix into 35x35 matrix?

Answer 1

[Phillip]

Hi,

You can pad your first set of data as follows:

data1Mod = [data1 zeros(35,7)];

This will give a 35x35 matrix which you can then concatenate. This assumes you don't mind padding with zeros. You can obviously pad with anything else.

- Edited -

I should have added that you need to be more clear on how you want to handle the "missing" data. I have just shown how to pad it. You might want to extrapolate, copy etc. Phil

Answer 2

[Walter Roberson]

You should probably be using interp2() or imresize() to extrapolate one of the two data sets to be the same size as the other; then you can concatenate them along the third dimension.