getting index of elements

I have two vectors

g_vector = [2 0]

list = [3 0]

I would get the index of elements of g_vector that have their index in list matrix setted to 0. How can I do?

If I do

g_counter(list == 0)

I get 0 element of g_vector but I would have returned index 2 corresponding to the index of 0 in g_vector

[Azzi Abdelmalek]

duplicate at http://www.mathworks.com/matlabcentral/answers/53377-corresponding-index-of-an-element

Answer 1

[Matt J]

find(list==0)

[Salvatore Mazzarino]

No it is not what I asked. The corresponding element of g_vector matrix has to be 0. In this way I don't know if the elements is 0 or not

[Salvatore Mazzarino]

What I mean is to create a way to do this

in list matrix we have 3 and 0. select index 2 of list matrix. Now I would get the index of g_vector that have index 2 and have also 0 as element

[Salvatore Mazzarino]

let me explain better

I have two vectors

g_counter = [2 0]

and

list = [3 0]

I would get the indices of all the elements belong to g_counter that have their position setted to zero and the corresponding position of list vector has to be setted to 0.

For instance with the given vectors I would get 2 as index. How can I do?

[Matt J]

find(g_counter==0 & list==0)

Answer 2

[Image Analyst]

Perhaps one of these

index = find(g_counter == list(2))
index = find(g_counter == list(list==0))