Common numbers between arrays

Hello,

I want to write a function that list out all common numbers between at least two array in a cell consisting of many arrays.

For instance, assume you have a cell array A = {[1,2,3], [3 4 5 6], [3 7 8 2], [11 3 15]}.

the result must be

A{1} = 2,3

A{2} = 3

A{3} = 3,2

A{4} = 3

Thank you a lot

Answer 1

[James Tursa]

You could write some code using the intersect( ) function for this. E.g., the first result

>>  A = {[1,2,3], [3 4 5 6], [3 7 8 2], [11 3 15]}
A =
  1×4 cell array
    {1×3 double}    {1×4 double}    {1×4 double}    {1×3 double}
>> intersect(A{1},[A{2:4}])
ans =
     2     3

You could write a loop where each cell is compared to a merging of the other cells as shown above.

[Mo H]

I can't use intersect because I am doing some computation for each array element. The result will be compared to threshold to determine the relationship. Thank you for you effort.

Answer 2

[KSSV]

Read about intersection.