How to find the position in cell arry?

Hi

I have cell array data example. D = {[1 2];[1 4];[1 6];[2 4];[2 5];}

I want to find the position of [1 6] in that D, and the answer is 3.

I try this command

    suppose c = [1 6]

      cellfun(@(x) ismember(x,c),D,'UniformOutput',false)

and the output is below

      [0]    [0]    [1]    [0]    [0]

but I want the answer is 3

how to do it?

thank you

Answer 1

[Honglei Chen]

D = {[1 2];[1 4];[1 6];[2 4];[2 5];}
c = [1 6]
[~,~,idx] = intersect(c,cell2mat(D),'rows')

[Andrei Bobrov]

[k2,k2] = ismember(c,cell2mat(D),'rows');

[alice]

thank you so much, I can apply this command for my work.

However,

[~,~,idx], it's error.

but if i define any variable replace [~,~,idx], example [m,n,idx], it's not error

[Honglei Chen]

~ is introduced recently, indicating that the output is not needed in successive steps. If it errors out, you can just use any variable name you want, as you have tried.

Answer 2

[alice]

Dear, Andrei bobrov

your answer is also work.

thank you.