Matlab function inside Simevents gives parse error

I tryed to write a simple Matlab function in Simevent system. The function is as follows: _ _ _ *function [out_VFT, out_Time_In] = fcn(~,VFT,Time_In,Pcksize,weight,class,~,WFQ_DRR_MIX) double VFT1=0; double VFT2=0; double VFT3=0; double VFT4=0; double VFT5=0; double VFT6=0; double VFT7=0;

if class==8||WFQ_DRR_MIX==1 switch class case 1 if VFT1>Time_In out_Time_In = VFT1; else out_Time_In=Time_In; end out_VFT=out_Time_In+Pcksize/weight; VFT1=out_VFT;

    case 2
            if VFT2>Time_In
            out_Time_In = VFT2;
            else
            out_Time_In=Time_In;
            end
out_VFT=out_Time_In+Pcksize/weight;
VFT2=out_VFT;

     case 3
            if VFT3>Time_In
            out_Time_In = VFT3;
            else
            out_Time_In=Time_In;
            end
out_VFT=out_Time_In+Pcksize/weight;
VFT3=out_VFT;

    case 4
            if VFT4>Time_In
            out_Time_In = VFT4;
            else
            out_Time_In=Time_In;
            end
out_VFT=out_Time_In+Pcksize/weight;
VFT4=out_VFT;

    case 5
         if VFT5>Time_In
         out_Time_In = VFT5;
         else
         out_Time_In=Time_In;
         end
out_VFT=out_Time_In+Pcksize/weight;
VFT5=out_VFT;

    case 6
            if VFT6>Time_In
            out_Time_In = VFT6;
            else
            out_Time_In=Time_In;
            end
out_VFT=out_Time_In+Pcksize/weight;
VFT6=out_VFT;

   case 7
            if VFT7>Time_In
            out_Time_In = VFT7;
            else
            out_Time_In=Time_In;
            end
out_VFT=out_Time_In+Pcksize/weight;
VFT7=out_VFT;

    end
else
    out_VFT=VFT;
    out_Time_In=Time_In;
end
end* _ _ _

I get the following error: Undefined function or variable 'VFT1 TO VFT7'. The first assignment to a local variable determines its class.I trying different solutions, but with no result. Pls, help.

[Walter Roberson]

duplicates http://uk.mathworks.com/matlabcentral/answers/230684-matlab-function-inside-simevents-gives-parse-error