Not enough input arguments. Help me please.

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Muhammad Sufiyan
Muhammad Sufiyan 2015-4-28
编辑： Muhammad Sufiyan 2015-4-29
Help me, i'm new to MatLab and I got this error after typing this code. Can somebody help me please and find a solution. Thanks.
function expected_freq = feature8(data,fs)
cutoff = 100;
data=data/max(abs(data));
b= fir1(100,2*cutoff/fs,'high',chebwin(101));
data=conv(data,b);
t=60e-3;
wl=2^nextpow2(t/(1/fs));
w=hann(wl,'periodic');
[F,T,P]=spectrogram(data,w,[],wl,fs);
a=sum(P,1);
temp1 = repmat(a,[],length(F));
PMF=P./temp1;
temp2 = repmat(F,1,length(T));
freq = sum(PMF.*temp2);
expected_freq= std(freq);
end
>> feature8 Error using feature8 (line 3) Not enough input arguments.

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