Is possible configure matlab to get a+[ ]=a?

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Dario Mateo Arango Angarita
评论： Rik 2019-12-5
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Greetings people.
I currently sent some codes for a software that I developed, and I did not take into account that some values ​​could be empty []. I get some empty values and i had to make a sum, but a + [] = []. It was a big mistake.
Is it possible to configure any option to get a + [] = a without using isEmpty or a command?
Thank you in advance.

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回答（2 个）

Matt J
Matt J 2019-12-4
  2 个评论
Rik
Rik 2019-12-5
Comment posted as answer by Dario Mateo Arango Angarita:
Thank you Matt.
Do you know if is possible edit the double class or plus function in MatLab?
Rik
Rik 2019-12-5
You should be really careful with editing base components of internal Matlab functions, see this comment for an example why.
Did you try following the advice in the linked pages?
I would strongly suggest using the sum method instead.

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Matt J
Matt J 2019-12-4
编辑：Matt J 2019-12-4
You could also replace your plus() operations with sum() operations. Compare:
>> a=3; b=[];
>> a+b
ans =
[]
>> sum([a,b])
ans =
3

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