why my plotting doesnt follow my line_effect?

i want my plotting to have a different line effects for each value of "c" but all curves comes out the same line effect

clc;
close all;
M=8;
N=32;
K=14;
cc=[0.8 1.2 1.6 2];
P=4;
s=2;
line_effect = {'g:','b:','r--','g--'};
for Q=1:P
     c=cc(Q)  
syms i
nT=50;
 %nlambda = 50;
Tvals = linspace(0,30,nT);
 %lambdavals2 = linspaace(0,30,nlambda);
        %lambdavals = 10.^(lambdavals2/10);
        pfa=zeros(0,nT);
        %pd = zeros(1, nlambda);
        stop_count = nT;
        %stop_count = nlambda;
for L = 1 : nT
    T=Tvals(L)
    %lambda = lambdavals(L)
    Tc=T.^(c/2)                                %constant sub-expression factored out
    pd1temp = arrayfun(@(i) nchoosek(N/2,i) * gamma(K+i) * gamma(N-K-i+1+Tc), K : N/2, 'Uniform', 0); %constant denominator removed from terms
    pd1sum = sum( [pd1temp{:}] ) ./ gamma(N+1+Tc);      %this is the first symsum
    pfa1 = 2 * K * nchoosek(N/2,K)* pd1sum;
    pfatemp = arrayfun(@(i) nchoosek(M,i)*(pfa1)^(i)*(1-pfa1)^(M-i), s:M, 'Uniform' ,0);
    pfasum = sum( [pfatemp{:}] );                       %this is the second symsum
      if L > 1
                if pfasum > pfa(L-1)
                    stop_count = L-1;
                    break;
                end
     end
    pfa(L) = pfasum; 
end
semilogy(Tvals(1:stop_count), pfa(1:stop_count),line_effect{s});hold on
axis([0.1 30.1 10^(-26) 10^(1)])
end
 legend('c=2','c=1.6','c=1.2','c=0.8')

Answer 1

[Walter Roberson]

semilogy(Tvals(1:stop_count), pfa(1:stop_count), line_effect{Q}); hold on