下面这个报错是什么意思

zeng119

function y=FiltFuncl(x,windowsNum,samp1eNum)
varout=ones (sampleNum, 1)*100000000;
for i=l:(samp1eNum-windowsNum+1 )
    a=x(i:i+windowsNum-1)
    m=mean(a);
    vartmp=std(x(i:i+windowsNum-1));
    for j=i:i+windowsNum-1
        if(varout(j)>vartmp)
        end
    end
end
end
len=200;
flen=10; snr=1;
a=zeros (1, len);
for t =1:len
     if t<100
        a(t)=0;
     else
        a(t)=2;
     end
end
z=awgn (a, snr,' measured'); t=1:1:60;
c=FiltFuncl (z, flen,len); figure;
plot (a,' r');
figure;
plot (z,' g');
figure;
plot (c,' b');



顺便帮忙看看这个程序有啥问题么，一个边沿滤波器的程序

我应该

钉钉