Is there a way to start indexing with 0 in MATLAB?

a=[4 2 5 2]

can I make this happen?

a(0)=4

Answer 1

[madhan ravi]

Nope not at all index of matlab starts from 1 always!

[IBM watson]

Okay, thanks!

[madhan ravi]

Anytime :)

Answer 2

[Bruno Luong]

Yes, but you won't get much support by built-in array stock function

>> M = containers.Map('KeyType','uint32','ValueType','double')

M = 

  Map with properties:

        Count: 0
      KeyType: uint32
    ValueType: double

>> M(0)=3

M = 

  Map with properties:

        Count: 1
      KeyType: uint32
    ValueType: double

>> M(0)

ans =

     3

>> 

[IBM watson]

Great! I will take a look . Thanks

[Walter Roberson]

Also in the File Exchange someone posted a toy class to permit indexing starting from 0.

[IBM watson]

Thanks!

[Walter Roberson]

https://www.mathworks.com/matlabcentral/fileexchange/33301-zero-based-indexable-arrays-oop-exercise

[IBM watson]

Many thanks!!

[Utku Yilmaz]

ZeroBased function (link given above) is very useful. 1 based indexing creates problem when I share my code with software developers using C language. The indexes get messy and it becomes very hard to compare codes.

I always used index values starting from 0, as following. But I think, I will utilize ZeroBased function from now on.

for index_A = 0 : 10
    for index_B = 0 : 10
        value = a_matrix(index_A+1, index_B+1);
    end
end