Running this problem an error occurs: ??? Error using ==> rem Not enough input arguments.

clear all;
clc;
N=20;
if (rem(N,2)==0)
for n= 1:(N+1)/2
    b(n)=(2*n)/N;
end
for n=(N/2)+1:N
    b(n)=(2*(N-n+1)/N);
end
else
    for n= 1:(N+1)/2;  

      b(n)=(2*n)/(N+1);
  end

for n=(N+1)/2:N

      b(n)=(2*(N-n+1)/(N+1));
  end
  plot(b)
  xlabel('time samples')
  ylabel('amplitude')
  title('triangular window')
  end

Answer 1

[Jan]

If you delete the useless "clear all", you can use the debugger for further investigation:

dbstop if error

Then Matlab stops when the error occurs and you can check in detail, what's going on in the current line of code.

clear all deletes all breakpoints and debugging conditions. Therefore it is a really bad idea.

[palak]

thanks for the suggestion

Answer 2

[Chandrasekhar]

there are syntax errors in the code. there is no end for the if else statement and no end for the second for loop

clear all; 
clc; N=20; 
if (rem(N,2)==0) 
    for n= 1:(N+1)/2
        b(n)=(2*n)/N; 
    end
    for n=(N/2)+1:N 
        b(n)=(2*(N-n+1)/N);
    end
else
    for n= 1:(N+1)/2;
    end
end

[palak]

It had properly been ended by me with one more end statement in the complete program as you said . still it is not working.

Answer 3

[Azzi Abdelmalek]

Type and show the result

which rem

Or check in your current folder if there is a function named rem

[palak]

??? Error using ==> rem Not enough input arguments.

this is the error statement that appears, as i run the program.

[palak]

this is a predefined function not the user defined

[Jan]

@palak: Please post the complete message. Most of all the failing line is important.