Creating the uniform distribution on [0,2pi) for 1000 times

I want to Create the uniform distribution on [0,2pi) for 1000 times,and here is my code

      for n = 0:1:1000
          theta(n)=0+(2*pi)*rand(1,1)
      end

But matlab show me the warning: Subscript indices must either be real positive integers or logicals.I don't understand why does it show me this warning,can anyone tell me where am i wrong?

Answer 1

[Stephan]

Hi,

dont start with n=0:

 for n = 1:1:1000
     theta(n)=0+(2*pi)*rand(1,1);
 end

The better way (without loop) is following this and use:

theta = (2*pi)*rand(1,1000);

Best regards

Stephan

[Kinjal Macwan]

@StephanI want to create 500 samples of a signal 𝑑(𝑛) = 𝑠𝑖𝑛 (𝜔0𝑛 +𝜃)

with 𝜔0= 0.05𝜋 and 𝜃 is a random variable that is uniformly distributed between –π and π.

How to write the theta from -pi to pi in this problem?

[Stephan]

https://de.mathworks.com/help/matlab/math/random-numbers-with-specific-mean-and-variance.html

n = 500;
a = 2*pi;
theta = a.*rand(n,1)-pi;
histogram(theta)