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

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?

Answer 1

[Adam Danz]

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}];