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

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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.

Answer 1

[Matt J]

No way that you're going like. You could subclass Matlab's double type

https://www.mathworks.com/help/matlab/matlab_oop/extend-built-in-class-operators.html#buqsv_e

Then, you can overload the @plus method

https://www.mathworks.com/help/matlab/matlab_oop/implementing-operators-for-your-class.html

[Rik]

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]

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.

Answer 2

[Matt J]

You could also replace your plus() operations with sum() operations. Compare:

>> a=3; b=[];

>> a+b

ans =

     []

>> sum([a,b])

ans =

     3