I have a table data: A column is the identifier data, column B C D is the data I want to sum up by the same A value.
How can I do that?
I tried 'accumarray', but it seems I mixed table and array. MATLAB says"Undefined function 'accumarray' for input arguments of type 'table'." Then I turned my data to an array, MATLAB says "All input arguments must be tables." And I do have 3 columns values to be summed up. Thank you.
[a,~,c] = unique(yourdata(:,1)); % 'yourdata(:,1)' 1 means column 1 is the identifier output = [a, accumarray(c,yourdata(:,2))]; % 2 means the colume to be summed up.