How can I make a random array with values of either -1 or 1?

2 次查看(过去 30 天)
I'm trying to use randi to make a matrix filled with either -1 or 1 however randi also includes 0s.

采纳的回答

Image Analyst
Image Analyst 2016-10-24
Try this:
r = 2 * randi(2) - 3
I just answered this very recently.

更多回答(1 个)

George
George 2016-10-24
编辑:George 2016-10-24
You can use rand
% pseudo code
x = rand(50,1);
pos = x >= .5;
neg = x < .5;
x(pos) = 1;
x(neg) = -1;
This suffers from the fact that you have to make a decision when randn returns 0.5 exactly..

类别

Help CenterFile Exchange 中查找有关 Random Number Generation 的更多信息

Community Treasure Hunt

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

Start Hunting!

Translated by