i am getting an error stating not enough input arguments someone please check through it for my mistakes

function[Filterd_Output_Sig,Filt_Nuem,Filt_Denomi] = LPBUTTERFRAC(Msg_bits,Freq_Cutoff,Sam_Frequ,Fil_Order); %error : not enough input arguments

Freq_Nyquist = Sam_Frequ/2;

Non_Dimen_Freq=Freq_Cutoff/Freq_Nyquist;

[Filt_Nuem,Filt_Denomi]=butter(Fil_Order,Non_Dimen_Freq,'low'); % Filter Construction

Filterd_Output_Sig=filtfilt(Filt_Nuem,Filt_Denomi,Msg_bits);

LPF_Par_Order=1;

[Filterd_Output_Sig,Filt_Nuem,Filt_Denomi] =LPBUTTERFRAC(Msg_bits,1000,Freq_Step,5);

[Error_Mag_L,Error_Resp_L] = freqz(Filt_Nuem,Filt_Denomi,256,Freq_Step);

figure(2)

Error_Mag_Frac=angle(Error_Mag_L)*LPF_Par_Order;

plot(Error_Resp_L,Error_Mag_Frac,'r');

LPF_Par_Order=1.2;

[Filterd_Output_Sig,Filt_Nuem,Filt_Denomi]=LPBUTTERFRAC(Msg_bits,1000,Freq_Step,5);

[Error_Mag_L,Error_Resp_L] = freqz(Filt_Nuem,Filt_Denomi,256,Freq_Step);

figure(2)

Error_Mag_Frac=angle(Error_Mag_L)*LPF_Par_Order;

plot(Error_Resp_L,Error_Mag_Frac,'b');

LPF_Par_Order =1.4;

[Filterd_Output_Sig,Filt_Nuem,Filt_Denomi] =LPBUTTERFRAC(Msg_bits,1000,Freq_Step,5);

[Error_Mag_L,Error_Resp_L] = freqz(Filt_Nuem,Filt_Denomi,256,Freq_Step);

figure(2)

Error_Mag_Frac=angle(Error_Mag_L)*LPF_Par_Order;

plot(Error_Resp_L,Error_Mag_Frac,'g');

hold on

LPF_Par_Order =1.6;

[Filterd_Output_Sig,Filt_Nuem,Filt_Denomi]=LPBUTTERFRAC(Msg_bits,1000,Freq_Step,5);

[Error_Mag_L,Error_Resp_L] = freqz(Filt_Nuem,Filt_Denomi,256,Freq_Step);

figure(2)

Error_Mag_Frac=angle(Error_Mag_L)*LPF_Par_Order;

plot(Error_Resp_L,Error_Mag_Frac,'y');

axis on

grid on

legend('order 1','order 1.2','order 1.4','order 1.6');

title('Error Response of Fractional Low Pass Filter')

xlabel('Frequeny');

ylabel('Error Magnitude(dB)');

Answer 1

[madhan ravi]

You didn’t define the input arguments before calling the function.