试用软件

How to find specific entry values in a vector?

2 次查看（过去 30 天）

显示更早的评论

LS 2021-5-20

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/835098-how-to-find-specific-entry-values-in-a-vector

评论： LS 2021-5-20

I would like to consider only the 3's between the 1's and 2's.

x = [1, 1, 1, 3, 3 ,3 ,2 ,2, 3, 3, 1, 1, 1 , 3, 3, 2 ,3,...];

Desired result: r = [0, 0, 0, 3, 3, 3, 0, 0, 0, 0, 0, 0, 0 ,3 ,3 , 0 ,....]

for i = 1:length(x)-1

if x(i)==1 && x(i+1) == 3

while ...?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

KSSV 2021-5-20

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/835098-how-to-find-specific-entry-values-in-a-vector#answer_704348

在 MATLAB Online 中打开

x = [1,  1,  1,  3,  3  ,3  ,2  ,2,  3,  3,  1,  1,  1  , 3, 3, 2 ,3];
x(x~=3) = 0
x = 1×17
     0     0     0     3     3     3     0     0     3     3     0     0     0     3     3     0     3

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

LS 2021-5-20

Thanks, but it's not what I meant. I would like to get these values (every group of 3's between 1 and 2)

请先登录，再进行评论。

请先登录，再回答此问题。

类别

MATLAB Language Fundamentals Loops and Conditional Statements

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

标签

Community Treasure Hunt

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

Translated by

试用软件