for loop help and counts

I have an array and started coding but I've come stuck:

CDF=[-4 0
    -3  0.1
    -1  0.4
    1   0.6
    3   0.9
    4   1.0];

xi = interp1(CDF(:,2), CDF(:,1), [0.05; 0.15; 0.63])

for i=1:10000
    y=rand(1);
    xi_y = interp1(CDF(:,2), CDF(:,1), y)

I need to run a for loop 10000 times to generate a random number y between 0-1. I need to calculate the corrosponding x value from the array and run a count function into 100 equally sized bins between x=-4 and x=4

[Image Analyst]

Felix's original question, so it will be here after he deletes it.

I have an array and started coding but I've come stuck:

CDF=[-4 0
    -3  0.1
    -1  0.4
    1   0.6
    3   0.9
    4   1.0];

xi = interp1(CDF(:,2), CDF(:,1), [0.05; 0.15; 0.63])

for i=1:10000
    y=rand(1);
    xi_y = interp1(CDF(:,2), CDF(:,1), y)

I need to run a for loop 10000 times to generate a random number y between 0-1. I need to calculate the corrosponding x value from the array and run a count function into 100 equally sized bins between x=-4 and x=4

Answer 1

[Image Analyst]

Just index it, xi_y(i), so you save all the x values, and then when the loop finishes pass xi_y into hist() or histc().

[Felix]

I'm new to Matlab, whatis indexing?

[Image Analyst]

You have a history of deleting your questions so I'm just going to suggest this: http://www.mathworks.com/matlabcentral/answers/8026-best-way-s-to-master-matlab Good luck.