uitable - how to extract negative numbers (but there is also empty cells) from a ui table in GUIDE

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Nathan Kennedy
Nathan Kennedy 2018-9-28
编辑： Adam Danz 2018-9-28
Hi,
I am having issues extracting data from a ui table in GUIDE. The ui table has empty cells and also negative numbers. I need the empty cells to be zeros and the negative numbers are giving me errors.
I have tried str2double(cell2mat(ui_table_data)) and some other combinations but I think I have the wrong end of the stick of how this is done in MATLAB.
Is there a good way of doing this?

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Adam Danz
Adam Danz 2018-9-28
编辑：Adam Danz 2018-9-28
Here's a solution that identifies what elements of the cell array contains data and then moves those elements to a matrix initialized with zeros.
This assumes ui_table_data was taken from your UI table ( hObject.Data ).
hasData = ~cellfun(@isempty, ui_table_data);
uiTableData = zeros(size(ui_table_data));
uiTableData(hasData) = [ui_table_data{hasData}];

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