I have written this function for the sine wave that takes different values of frequency(f0)and sampling frequency(fs) Can anyone help where I am doing wrong.

1 次查看（过去 30 天）
Aash
Aash 2017-10-28
评论： Walter Roberson 2017-10-29
function y= sin_f(length,amplitude,Frequency,phaseShift)
N=length;
f0 =Frequency;
phi= phaseShift;
A=amplitude;
y=zeros(1,N+1);
for n=1:N+1
y(n)=A*sin(2* pi* f0 * (n-1)+ phi);
end
N=40; % Number of samples
A=1.5; % Amplitude
k=1; % for subplot
phi =pi/2; % for phase angle
fs = 44000
x=[0:1:N];
m = [0, 0.05, 0.1,0.4,0.45,0.5,0.55,0.6]
%m=[0 .1 .2 .8 .9 1 1.1 1.2];
r=floor(length(m)/2);
for i= m
f0=m
y= sin_f(N,A,f0,phi);
figure(1)
subplot(r+1,2,k);
stem(x,y);
xlabel('Time Index n');
ylabel('Amplititude');
title(m(k));
k=k+1;
end

请先登录，再回答此问题。

回答（1 个）

Walter Roberson
Walter Roberson 2017-10-29
You tried to use length as the name of a parameter and also as the function that it more commonly represents.
Your code has no comments about what sizes are expected for the parameters, and does no checking; your code just crashes for no good reason if the user passes something non-scalar.
  7 个评论
显示 5更早的评论
Aash
Aash 2017-10-29
so u mean i should change name of N= length in the function? if its so then why is it working for angular frequency?
Walter Roberson
Walter Roberson 2017-10-29
N is not the problem. The problem is "length". You should avoid using variable names that are the same as MATLAB functions, because you will tend to forget that they are variables at the time you need the function.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 MATLAB 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by