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

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Uriel Clark
Uriel Clark 2016-10-18
回答： Matthew Eicholtz 2016-10-18
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.

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回答（2 个）

Matthew Eicholtz
Matthew Eicholtz 2016-10-18
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;
end
Geoff Hayes
Geoff Hayes 2016-10-18
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.

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