find if a column vector contains at least element 1

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Salvatore Mazzarino
I have to check if column vector has at least element 1. Does Matlab have such similar function or I have to build it myself?

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Sean de Wolski
Sean de Wolski 2012-9-20
tf = any(A(:)==1)

更多回答（1 个）

Azzi Abdelmalek
Azzi Abdelmalek 2012-9-20
编辑：Azzi Abdelmalek 2012-9-20
length(a)
Or
numel(a)
  2 个评论
Salvatore Mazzarino
Salvatore Mazzarino 2012-9-20
No I don't mean check if the matrix has at lest one element. I would know if the matrix contains at least 1. For example:
A=[1 0 0]
this contains 1.
B=[0 0 0]
this contains all zeros.

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