How to extract cell array data to numeric arrays or a single multidimensional array

I'm working with 7 sets of data which I've imported into Matlab using the code below. Each cell in data contains a 1620x1869 array. I want to perform operations on each of these datasets, but I can't figure out how to extract the data into individual numeric arrays. Although the operations that I perform next are roughly the same for all sets, the data used for each is different which is why I'd like to extract the data first so that I can run functions individually. I have tried cell2mat but get the following error:

"Error using cell2mat (line 52). CELL2MAT does not support cell arrays containing cell arrays or objects."

Perhaps importanting my data into a cell array was appropriate, however I haven't figured out how to save the data to seperate numeric arrays in the for loop.

Thanks in advance for any help.

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for i=1:7

myfilename = sprintf('myfile%d.txt',i);

filename = fullfile('path',myfilename);

fid = fopen(filename,'r');

data{i} = table2cell(readtable(filename));

fid = fclose(fid);

end

Answer 1

[Jon]

If I understand correctly, you should be able to extract the kth individual array using something like:

A = data{k}

[smachieca]

Thank you. I had tried cell2mat(data{k}) but not simply data{k}...

[Jon]

I also often struggle with the syntax to get what I want when working with cell arrays. Sometimes I find it helpful to just play around a little with a simple example in my command window until I get it working.

Here's a good explanation of it all: https://blogs.mathworks.com/loren/2006/06/21/cell-arrays-and-their-contents/

[smachieca]

Thank you, that's a really helpful article!