Help!!!!!!!! How to replace all the negative values in an array with zeros?

조회 수: 28 (최근 30일)
Would anyone know how to use the vectorization method for this question? I did it the loop method but I would also need to do it for vectorization method, any ideas?
y(t) =sin(t) for all t where sint>0
elsewhere
y(t)=0
for -6 π ≤ t ≤ 6 π at intervals of π/10. Use vectorization to solve it.
This is how I did it with loops
%Inilization
aa=1;
ii=0;
t=0;
%Running the function for each -6pi to 6pi with an interval of pi/10
for t=input('input vector t:')
if sin(t)>0
y(aa)=sin(t);
else
y(aa)=0;
end
aa=aa+1;
ii=ii+1;
end
% Displaying the value for each count
t=-6*pi:pi/10:6*pi;
a=1:ii;
table=[a' y' t'];
How would I change the negative values in vector y to zero using vectorization in a way?
Thank you

채택된 답변

Honglei Chen
Honglei Chen 2012년 3월 12일
Did you delete your original question? I answered this several days ago. Please do not delete your question. Instead, if the answer is not what you want, update your question or add comments.
For this question, you can use logical index
t = (-6:0.1:6)*pi;
y = sin(t);
y(y<0) = 0;
  댓글 수: 1
Rooy
Rooy 2012년 3월 12일
Thank you for all the help and sorry I deleted the old question. Thanks

댓글을 달려면 로그인하십시오.

추가 답변 (1개)

Walter Roberson
Walter Roberson 2012년 3월 12일

카테고리

Help CenterFile Exchange에서 Loops and Conditional Statements에 대해 자세히 알아보기

Community Treasure Hunt

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

Start Hunting!

Translated by