when I use app designer， it tells me error of 'Value' must be a character vector or a string scalar.

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neal paze 2021-2-5

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https://ww2.mathworks.cn/matlabcentral/answers/736967-when-i-use-app-designer-it-tells-me-error-of-value-must-be-a-character-vector-or-a-string-scalar

评论： Walter Roberson 2021-2-5

采纳的回答： Mario Malic

I have write a script,I want to get tabulate(u), "u" is a matrix （200x1 double）。the result is as follows:

Value Count Percent

1 0 0.00%

2 0 0.00%

3 0 0.00%

4 0 0.00%

5 0 0.00%

6 91 45.50%

7 0 0.00%

8 109 54.50%

Then I want to do the script in app designer,I creat a edit field (text) which is used to display the tabulate.

but it always error:

z1=tabulate(u);

app.lousunEditField.Value=z1

then it tells "Error using matlab.ui.control.EditField/set.Value (line 98)

'Value' must be a character vector or a string scalar."

I have tried the string、num2str,it still doesn't work.

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Walter Roberson 2021-2-5

Is it a Numeric Edit field, or is it a Text Edit field?

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Mario Malic 2021-2-5

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/736967-when-i-use-app-designer-it-tells-me-error-of-value-must-be-a-character-vector-or-a-string-scalar#answer_615607

在 MATLAB Online 中打开

Hi,

z1 is a table, and Value doesn't accept tables. You can create a UITable component and just assign z1 to it

app.UITable.Data = z1;

If you insist on EditField components, index into the table using curly brackets.

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neal paze 2021-2-5

I still want to know more about how to index into the table using curly brackets.

THANKES!

Walter Roberson 2021-2-5

在 MATLAB Online 中打开

app.lousunUITable.Data{ROW,COLUMN}

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