How to combine numeric contents inside a cell array with another numeric matrix

I want to combine numeric contents inside a cell array with another numeric matrix. The following is a simple demo code.

%%generate a cell array with numeric contents
k=1;
for i=1:3
    for j=1:4
        RowCol{k}=[i j];
        k=k+1;
    end
end

%%another numeric matrix, contents can be NaN or numeric

XY=NaN(numberrow*numbercolumn,2);

%%Combine numeric contents inside a cell array with another numeric matrix
for ii=1:12
    Data(ii)=[RowCol{ii,1},XY(ii,:)]
end

The combination doesn't work! Could you please help me out? Anyone has any suggestions? I highly appreciate it.

Answer 1

[Walter Roberson]

Data{ii} = [RowCol{ii,1},XY(ii,:)]

Notice change of (ii) to {ii}

In place of your loop you could use

Data = cellfun(@(A,B) [A,B], RowCol, XY, 'Uniform', 0);

[Jiali]

Wonderful! Thank you for sharing "Cellfun" function, really useful.