how to display matrix in msg box

Question

Signe Carlslund Kristensen 2018-1-11

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https://ww2.mathworks.cn/matlabcentral/answers/376636-how-to-display-matrix-in-msg-box

回答： Signe Carlslund Kristensen 2018-1-12

采纳的回答： Stephen23

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Hi

I would like to display til following matrix in a msgbox, so they are placed nicely is in a normal matrix.

I found this code, but the values are not writtes as in a matrix, but more link in a txt file.

if somebody knows how to fix this, I would be happy!

if true
  MGF =
     7     7     4     7
    12    10    10    12
    -3     7     2    -3
    10    12    12    12
     7     4    10    10
    12    12    10    12
     0    -3     2    -3
     7    10     7    10
    12    12    12    12
     5    13     8    10
    12   NaN   NaN    12
    msgbox(num2str(MGF))
end

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Answer 1

Stephen23 2018-1-11

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Use the correct tool: uitable

Or you might be able to change the typeface (font) to a monospaced one.

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Answer 2

Pawel Jastrzebski 2018-1-11

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编辑：Pawel Jastrzebski 2018-1-11

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Your MGF isn't a matrix. Encompass it with [] and ; for row separation and it should work. See the example below:

m = randi(5,6)
msgbox(num2str(m))

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Answer 3

Signe Carlslund Kristensen 2018-1-11

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thanks for your answer.

But when i do is you write is the result as on the picture, and then it again looks like something that could be from a .txt file. Do you know how to fix this?

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Pawel Jastrzebski 2018-1-11

I don't think it's possible to have the matrix values perfectly aligned in the message box. But if you think about it, message box is a 'Figure' object. So instead of using 'msgbox', plot your data with i.e. heatmap and remove all of the formatting and you'll achieve the same result.

https://uk.mathworks.com/help/matlab/ref/heatmap.html?searchHighlight=heatmap&s_tid=doc_srchtitle

https://uk.mathworks.com/matlabcentral/fileexchange/63457-matlab-plot-gallery-heatmap-chart?focused=7852113&tab=example

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