MATLAB: How to delete a field variable from a structure

Question

I have variable in gui: handles.Data; Data is type: 70x50x2 logical. I need to delete the variable data. When i write: delete(handles.Data); or clean(handles.Data); then get an error: Argument must contain a string. 🙁

Thank you

Answer 1

handles.Data is a field of variable handles. To delete a field,

handles = rmfield(handles. 'Data');

To set the field to empty,

handles.Data = [];