MATLAB Answers

Indexing through an array

조회 수: 9(최근 30일)
Elizabeth Scharre
Elizabeth Scharre 3 Mar 2021
댓글: James Tursa 3 Mar 2021
Suppose I have this
B = [1 4 7 10; 2 5 8 11;3 6 9 12]
1 4 7 10
2 5 8 11
3 6 9 12
And I want to check through each column for a value of 2. How would I do this?
  댓글 수: 1
James Tursa
James Tursa 3 Mar 2021
What do you want as a result? A logical array indicating which columns have a 2 in them? An outline for a for-loop that checks for a 2 in a column? Or ...?

댓글을 달려면 로그인하십시오.

답변(1개)

Walter Roberson
Walter Roberson 3 Mar 2021
B = [1 4 7 10; 2 5 8 11;3 6 9 12]
B = 3×4
1 4 7 10 2 5 8 11 3 6 9 12
any(B==2,1)
ans = 1x4 logical array
1 0 0 0

Community Treasure Hunt

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

Start Hunting!

Translated by