SOLVED: Error while trying to repeat a script multiple times in a for loop

Lauren Nixon

2019 8 26

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7 次查看（30 天）

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Hi there,

I am trying to execute this code 500 times and save it as an array, x.

 u=rand();
     m=1;
    while(u>=cum_prob(m))%
              m=m+1;
     end
     x=(bin_edges(m-1)-bin_edges(m-2))/(cum_prob(m-1)-cum_prob(m-2))*(u-((((bin_edges(m-1)*cum_prob(m-2))-((bin_edges(m-2)*cum_prob(m-1))))/(bin_edges(m-1)-bin_edges(m-2)))));

That works when I run it. Now i need to do this 500 times and stores the results in an array, x. The code that I have written to do so is shown below, however I am getting the error "Array indices must be positive integers or logical values." at the line that starts with x(a)=.....

    x=zeros(1,500);
    for a=1:500
        u=rand();
        m=1;
        while(u>=cum_prob(m))%
            m=m+1;
        end
        x(a)=(bin_edges(m-1)-bin_edges(m-2))/(cum_prob(m-1)-cum_prob(m-2))*(u-((((bin_edges(m-1)*cum_prob(m-2))-((bin_edges(m-2)*cum_prob(m-1))))/(bin_edges(m-1)-bin_edges(m-2)))));
    end