MATLAB Answers

sum first matrix and second matrix

3 views (last 30 days)
I want to collect the first function and the second function but there is an error there is no help ('Xf ').
x=[-1 8 2 -3 -5 6 -4 5 -8 7 -9 4 5 -10 -6 -11 8 3 7 1 -5 -20 14 18 19 -16 8 16 -17 -15];
Xp=x(x>0);
Xn=x(x<0);
figure(1)
stem(Xn);
title('negative signal');
Xn=abs(Xn);
figure(2)
stem(x);
title('orginal signal');
figure(3)
stem(Xp);
title('positive signal');
figure(4)
stem(Xn);
title('abs negative signal');
Xf=Xp+Xn;

  0 Comments

Sign in to comment.

Accepted Answer

Walter Roberson
Walter Roberson on 12 Jan 2019
Your Xp and Xn are different lengths. You cannot add them. And if you could, what would the answer mean ?

  4 Comments

Show 1 older comment
Walter Roberson
Walter Roberson on 12 Jan 2019
Okay, so transmit them. Just keep in mind they are different lengths.
You can concatenate them if you have reason to,
[Xn, Xp]
but you would need to keep track of the size of at least one of the two if you need to separate them out again.
abdullah qasim
abdullah qasim on 17 Feb 2019
How can I keep track of the size of at least one of the two if I need to separate them out again?
Walter Roberson
Walter Roberson on 17 Feb 2019
XNsize = length(Xn);
[XNsize, Xn, Xp]

Sign in to comment.

More Answers (0)

Sign in to answer this question.


Translated by