MATLAB: Cell two mat Execution

digital image processingimage processingMATLAB

A cell array with size 1*178 inside each cell column vector of different sizes. I have to convert this to the matrix with 178 columns and the corresponding column vectors.

Any help is apppreciated! Thanks!

Best Answer

That is not possible. Numeric matrices cannot have different column lengths for different columns.

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MATLAB: Subscripted assignment dimension mismatch

When you use [A B] then you are asking for horzcat(A,B) -- pasting A and B "side by side", forming something that has a width of at least 2 (unless one of A or B is empty.)

When you convert the dbFeaturesTop or dbFeaturesSide entries to matrix (cell2mat), if there is more than one row in what you convert, the result would have multiple rows.

And then if you [] the two items with multiple rows together, you would have height as well as width.

In the assignment to x(:,sample), what you are assigning must be a scalar or a vector. If it is a vector it can be either a row vector or a column vector -- if it is a row vector then even though you are assigning into a column vector, it will still work. But, if the item you are assigning has both height and width, then you cannot store that rectangular object into the column vector x(:,sample)

You have not said enough about your values and intent for us to suggest the fix in your situation.

MATLAB: Combine each 8 matrices in a cell array

How about just a loop? Assuming a 1-D cell array

caOut = cell(length(ca)/8, 1); % New cell array for the output
counter = 1;
for k = 1 : 8 : length(ca)
    % Put 8 cells of ca into one cell of caOut.
    caOut(counter) = {[ca{k}, ca{k+1}, ca{k+2}, ca{k+3}, ca{k+4}, ca{k+5}, ca{k+6}, ca{k+7}]}
    counter = counter + 1;
end

Best Answer

Related Solutions

MATLAB: Subscripted assignment dimension mismatch

MATLAB: Combine each 8 matrices in a cell array

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