the variable can't be classified with parfor

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Ahmed 2014-9-7

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https://ww2.mathworks.cn/matlabcentral/answers/153859-the-variable-can-t-be-classified-with-parfor

关闭： MATLAB Answer Bot 2021-8-20

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I have large code and need fix the error of variable(perror) as can't be classified and I can summarized my code.

ind=1; indx =1; limit=4; % Opening the output file

fid=fopen('Parallel_k_n_L_test_16_6_2014.txt','wt');

parfor SNR=0:5

   undetected_errors = 0; 
    SNR
   frmerror=0;
   bitnerr=0;
   frames=0;
   .
   .
   .
   .
             % Decoder ---------------
      [success,kr,dd0,x_hat1]=turbo_decoder_infectious_no_int_z_9_6_2010(rcv,si,H1,co,fid,frames); 
     % ---------------------------------------------
      dseq1=dd0;
       % B E R ------------------
       error=sum(abs(dseq1-b));
     perror1=error/size(b,2);
     perror(frames)=perror1;  %(the problem here)
     if error~=0
        frmerror=frmerror+1
        bitnerr=bitnerr+error;
        if success == 1
            undetected_errors = undetected_errors +1;
            c_w(indx,:) = co;
            noise_w(indx,:) = noise;
            b_w(indx,:) = b;
            kr_w(indx,:) = kr;
            x_hat1_w(indx,:) = x_hat1;
            indx = indx +1;
           end
        end
     merror=mean(perror);
     ferror(ind)=merror;
     frmerr(ind)=frmerror;
     ind=ind+1;
     bits=frames*size(G1,1);
     BER=bitnerr/bits
     FER=frmerror/frames
    end
   fclose('all');
   semilogy(SNR,BER);