Problem with Vercat error

Question

Dani D 2016-2-15

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/268172-problem-with-vercat-error

评论： Star Strider 2016-2-15

采纳的回答： Star Strider

Hello, Why i have vercat error? They are the same , but i have and error. Please view the image. Thanks

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Answer 1

Star Strider 2016-2-15

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https://ww2.mathworks.cn/matlabcentral/answers/268172-problem-with-vercat-error#answer_209867

在 MATLAB Online 中打开

They’re not the same:

B = [82:246, 117:351];
RowA = 82;
ColumnA = 117;
B_elements = [RowA 246; ColumnA 351]
B_elements_range = diff(B_elements,[],2)
B_elements =
    82   246
   117   351
B_elements_range =
   164
   234

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Answer 2

Dani D 2016-2-15

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https://ww2.mathworks.cn/matlabcentral/answers/268172-problem-with-vercat-error#answer_209873

Thank you, But i want create matrix with 164 rows(from 82 to 246 ) with 234 columns(from 117 351 ). What i do?

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Star Strider 2016-2-15

在 MATLAB Online 中打开

It seems that you want to create it from an existing matrix.

This works:

A = randi(99, 250, 400);                            % Create Original Matrix
B = A(82:246, 117:351);                             % Create New Matrix From Elements Of ‘A’

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