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Cell contents reference from a non-cell array object error

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I have a code for selecting regions of interest on an image, create a mask and then apply this mask to the matrices in a cell array. The problem that is occurring is that Matlab says the cell contents reference a non-cell array object.
Cell contents reference from a non-cell array object.
Error in hopefully_the_last_window>pushbutton3_Callback (line 191)
Y = X{i}.*mask;
Error in gui_mainfcn (line 96)
Error in hopefully_the_last_window (line 42)
gui_mainfcn(gui_State, varargin{:});
Error in
Error while evaluating uicontrol Callback
I read on another answer on Mathworks that changing the {} brackets in my code to standard brackets () would fix this error ( changing Y = X{i}.*mask to Y = X(i).*mask). When I did this Matlab simply froze and stopped responding. Is this fix a decent solution to the error with some tweaks to stop matlab freezing or is there another possible cause of the error than the bracket?

Risposte (1)

Jan il 10 Ago 2017
Look at the code:
X = handles.finishCell;
mask = labeledImage;
for i = 1 : numel(X)
Y = X{i}.*mask;
We cannot know, what the contents of "handles.finishCell" is. The error message tells clearly, that it is not a cell array. Then simply using round parenthesis is pure guessing. You have to find out, what the contents of this variable is. Do not apply a solution, which was posted for perhaps a completely different problem.
Note that Y is overwritten in each iteration. Perhaps you want Y{i} also. Then some lines later:
handles.X = Y{i};
Are you sure, that you want the last element of Y only?


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