清空筛选条件
清空筛选条件

How to rearrange a row vector into a pair wise column vector?

3 次查看（过去 30 天）
marianne
marianne 2023-3-6
评论： marianne 2023-3-7
Hello, I have a row vector with a series of 21 values, for example from 1 to 21
v = [1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21]
and I need to rearrange it so it becomes a 20x2 vector like the one below, with the second value of the pair repeating in each new row.
I am sure there is a nice loop to do this, but I can't find a solution. Thank you
v2 = [1 2
2 3
3 4
4 5
5 6
...
20 21]

请先登录，再回答此问题。

采纳的回答

Stephen23
Stephen23 2023-3-6
编辑：Stephen23 2023-3-6
Ran in:
"I am sure there is a nice loop to do this, but I can't find a solution."
This is MATLAB, so loops are not required:
v = 1:21
v = 1×21
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
m = [v(1:end-1);v(2:end)].'
m = 20×2
1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11

更多回答（1 个）

Sarvesh Kale
Sarvesh Kale 2023-3-6
Hi marianne,
See if the following code snippet can help you
v = [1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21];
v2= [] ;
for i=1:2
v2(:,i) = v(1+i-1:20+i-1)';
end
disp(v2)
I hope this helps you, please accept the answer if it does
Thank you

类别

在 Help Center 和 File Exchange 中查找有关 Loops and Conditional Statements 的更多信息

标签

产品


版本

R2020a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by