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help on if statement

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Abra dog
Abra dog 2011-11-1
How can I use a if loop to display where X4(n,1)>X4(n,2)>X4(n,3)>X4(n,4)>X4(n,5) == 1 n = 1:31 I want it to show where this is true in the matrix or should i use a while loop?

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Honglei Chen
Honglei Chen 2011-11-1
You can vectorize this in one command:
idx = 1:31;
find( (X4(idx,1)>X4(idx,2))&(X4(idx,2)>X4(idx,3))&(X4(idx,3)>X4(idx,4))&(X4(idx,4)>X4(idx,5))&(X4(idx,5)==1))
HTH
  2 个评论
Abra dog
Abra dog 2011-11-1
It says Empty matrix: 0-by-1
Abra dog
Abra dog 2011-11-1
Never mind found out what i was doing wrong with your command. I don't need to put ==1 at the end. Thank you

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