How do I sample a random value from a matrix?

5 次查看（过去 30 天）
Ethan Correa
Ethan Correa 2018-5-2
评论： Ethan Correa 2018-5-2
Let's say I have a random matrix:
A = rand(10,4)
How can I sample a random value from this matrix (without replacement)? Essentially how can I perform a randsample but for a matrix instead of a vector?

请先登录，再回答此问题。

采纳的回答

Akira Agata
Akira Agata 2018-5-2
If you want to obtain k samples randomly from A, the following will do that.
ind = randperm(numel(A),k);
output = A(ind);

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Creating and Concatenating Matrices 的更多信息

标签

产品

Community Treasure Hunt

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

Start Hunting!

Translated by