question regarding filter design using particle swarm optimization algorithm?

I am doing my thesis work on filter design using particle swarm optimization algorithm.

step1. Initialization of filter coefficients.

step2. calculation of fitness(error) function for each filter coefficients.

here filter function i am using is

 J=∑_(w∈w_p)abs[abs(|H_d (w)|-1)-δ_p ] +∑_(w∈w_s)abs[abs(|H_d (w)|-δ_p )]

please give me some idea that how to calculate the error function of each filter coefficient in matlab code.

[umer farooq]

Dear Pranay , Did you find any information for your question.

Answer 1

[Harmandeep Bains]

I also want the answer on same question. Someone plz answer it.