isempty is allways zero

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Nik Rocky
Nik Rocky 2020-5-27
评论： Walter Roberson 2020-5-27
Hello,
im using isempty:
TP =
0 0 0
>> isempty(TP)
ans =
logical
0
>> TP(3) = 1
TP =
0 0 1
>> isempty(TP)
ans =
logical
0
Why is locical answer still zero? What can I do? I need to check multiple arrays for empty or not in if-else blocks.

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采纳的回答

Fangjun Jiang
Fangjun Jiang 2020-5-27
zero and empty are different
isempty([])
isempty(0)
isempty('')
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Nik Rocky
Nik Rocky 2020-5-27
TP1 =
0 0 0
>> TP2 = [0 1 0]
TP2 =
0 1 0
>> any(TP1)
ans =
logical
0
>> any(TP2)
ans =
logical
1
Right?

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