How can i create matrix automatically?

Question

Volkan Yangin 2017-4-13

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/335203-how-can-i-create-matrix-automatically

编辑： Volkan Yangin 2017-4-13

采纳的回答： Stephen23

在 MATLAB Online 中打开

Hi everbody

I should create a matrix by using number of element of any gap like as the example:

If gap has:

3 elements, matrix: [1 1 2]

4 elements, matrix: [1 1 2 2]

7 elements, matrix: [1 1 2 2 3 3 4] etc.

and matrix includes only 1 2 3 4 numbers, same numbers must be two side by side.

Is there any way for this operation?

Thanks...

Edit:

I have just created a loop for this operation:

for ...
  elements=[1 1 2 2 3 3 4 4];
  if numel(gap)<=numel(elements);
     matrix=elements(1:numel(gap));
  end
  if numel(gap)>numel(elements);
     diff=(numel(gap)-numel(elements))
     matrix=[elements linspace(4,4,diff)]
  end
end

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Answer 1

Stephen23 2017-4-13

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https://ww2.mathworks.cn/matlabcentral/answers/335203-how-can-i-create-matrix-automatically#answer_262899

在 MATLAB Online 中打开

>> fun = @(n)ceil((1:n)/2);
>> fun(3)
ans =
   1   1   2
>> fun(4)
ans =
   1   1   2   2
>> fun(7)
ans =
   1   1   2   2   3   3   4

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Volkan Yangin 2017-4-13

编辑：Volkan Yangin 2017-4-13

Thank you Stephen Cobeldick. By the time i have just created if-end loop for this operation and added under the your comment.

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Answer 2

Volkan Yangin 2017-4-13

0
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/335203-how-can-i-create-matrix-automatically#answer_262900

编辑：Volkan Yangin 2017-4-13

在 MATLAB Online 中打开

for ...
  elements=[1 1 2 2 3 3 4 4];
  if numel(gap)<=numel(elements);
     matrix=elements(1:numel(gap));
  end
  if numel(gap)>numel(elements);
     diff=(numel(gap)-numel(elements))
     matrix=[elements linspace(4,4,diff)]
  end
end