Clear Filters
Clear Filters

How do I generate a random number between two numbers, "n" number of times?

6 views (last 30 days)
I need to generate a random number that is between two other numbers and this will be looped "n" number of times in a "for" loop.

Answers (2)

Matthew Eicholtz
Matthew Eicholtz on 18 Oct 2016
Without using a for-loop:
a = 0;
b = 255;
n = 1000;
x = a + (b-a).*rand(n,1);
will generate n numbers randomly from the interval [a,b]. You could do this with a for-loop as well, but it is unecessary:
x = zeros(n,1);
for ii=1:n
x(ii) = a + (b-a).*rand;

Geoff Hayes
Geoff Hayes on 18 Oct 2016
Uriel - see rand and in particular the Random Numbers Within Specified Interval example. You could create an array of n elements and then populate each element (as you iterate in your for loop) with the random number as per the example.


Find more on Loops and Conditional Statements in Help Center and File Exchange

Community Treasure Hunt

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

Start Hunting!