# CDF and Inverse CDF of Wrapped Cauchy Distribution

The standard wrapped-up Cauchy distribution has the following probability density function:

f(x,p)= {1-p²}/{2*pi(1+p²-2*p*cos(x)}, Where x is from 0 to 2*pi

Follow this link for the mathematical expression: Wrapped Cauchy Distribution PDF

What is the CDF and INVCDF of this probability distribution? Any command or code is available in MATLAB to get INVCDF?

*NOTE:-*

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function main

p = linspace(0,1,11);

prob = linspace(0,1,100);

x = zeros(numel(p),numel(prob));

for i = 1:numel(p)

for j = 1:numel(prob)

x(i,j) = INVCDF(p(i),prob(j));

end

end

plot(prob,x(1,:),prob,x(2,:),prob,x(3,:),prob,x(4,:),prob,x(5,:),...

prob,x(6,:),prob,x(7,:),prob,x(8,:),prob,x(9,:),prob,x(10,:),...

prob,x(11,:))

end function x = INVCDF(p,prob)

fun = @(x)CDF(p,x)-prob;

x = fzero(fun,pi);

end function prob = CDF(p,x)

if x

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