清空筛选条件
清空筛选条件

The function for determining the position of a given value in an array.

3 次查看（过去 30 天）
liangjian
liangjian 2011-11-11
I have an array storing numerical values, I know the last part of this array are all zero values. How can I find the starting position of this part? In other words, I would like to find the starting position of 0 in this array. Which function should I use?

请先登录，再回答此问题。

采纳的回答

Wayne King
Wayne King 2011-11-11
x = ones(1e3,1);
x(750:end) = 0;
index = find(x == 0,1);
If you want to find the first K values.
K = 3;
indices = find(x==0,K,'first');
so
index = find(x == 0,1);
is equivalent to
index = find(x == 0,1,'first');

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Matrix Indexing 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by