how to padding array with zeros to limit rows (I can choose the limit)

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abdullah al-dulaimi
评论： Voss 2022-6-30
I have a data with 2 columns
AB=[1 6
2 7
3 8
4 9
5 10]
So, I want to (padding) with zeros to rows number 21, so the result will be
AB=[1 6
2 7
3 8
4 9
5 10
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0]

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采纳的回答

Walter Roberson
Walter Roberson 2022-6-30
[AB; zeros(21-size(AB, 1),size(AB, 2))]
  1 个评论
Walter Roberson
Walter Roberson 2022-6-30
In the special case where you know that AB is smaller than desired you can just use
AB(21,end)=0;
Do not use this if AB might already be large enough.

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更多回答（1 个）

Voss
Voss 2022-6-30
Ran in:
AB=[1 6
2 7
3 8
4 9
5 10];
AB(21,:) = 0; % MATLAB fills the intervening rows with zeros
disp(AB);
1 6 2 7 3 8 4 9 5 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

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