Sortrows works in my main function but doesn't work in my callback function?

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Soumyatha Gavvala 2016-6-24

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https://ww2.mathworks.cn/matlabcentral/answers/292222-sortrows-works-in-my-main-function-but-doesn-t-work-in-my-callback-function

评论： Soumyatha Gavvala 2016-6-24

采纳的回答： Walter Roberson

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Hi,

I'm using sortrows to sort a dataset array based on a column that contains non scalar values

       NaN      51.1512    4.0000    6.0000
       NaN      80.7646    3.0000    6.0000
       NaN      89.3755    2.0000    6.0000
       NaN      96.3119    1.0000    6.0000
       NaN      51.1512    8.0000    5.0000
       NaN      80.7646    7.0000    5.0000
       5.1104   89.3755    6.0000    5.0000
       NaN      96.3119    5.0000    5.0000
       9.0177   51.1512   12.0000    4.0000
       NaN      80.7646   11.0000    4.0000
       5.3294   89.3755   10.0000    4.0000

When i use sortrows in my main function, it works but when i use it in my callback functions i get the error,

Some cells in X contain non-scalar values and cannot be sorted.
Error in sortrows (line 87)
      ndx = sort_cell_back_to_front(x_sub, col);
Error in ScatterPlot (line 28)
sortData = sortrows(sortData,3);

Why does this happen?

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Answer 1

Walter Roberson 2016-6-24

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https://ww2.mathworks.cn/matlabcentral/answers/292222-sortrows-works-in-my-main-function-but-doesn-t-work-in-my-callback-function#answer_226695

You did not indicate which values you are sorting inside the callback. If you are fetching values from a uitable where the user has edited an entry, then the entry might have become a string without you realizing it, and strings are not scalar values.