Create a Warning in GUI if statement

Question

Sean 2016-5-17

0
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回答： Image Analyst 2016-5-17

Hi,

I'm trying to create a warning in a GUI I wrote, if all values in a column of a cell array are greater than a number display a warning.

I've tried this but it isn't working

     if c{:,2}>10
       warndlg('string')
     end

Any help is appreciated.

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dpb 2016-5-17

What does "not working" mean, precisely? The construct appears it should be fine. Is the array _c_ in context to the callback, perhaps?

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Answer 1

Walter Roberson 2016-5-17

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if all(cellfun(@(C) ~isempty(C) && isnumeric(C) && all(C(:) > 10), c(:,2) ))
  warndlg('string')
end

I have made the assumption here that items that are not numeric should not be counted as being > 10, and the additional assumption that empty cells are not to be counted as being > 10. However, in either of those cases, since the cell would not be counted as having a value greater than 10, it would not be true that all the values in the cell array column were greater than 10 so no warning would be produced.

I did not assume that the entries in the cell array were all the same size or the same number of dimensions.