Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
Drexel University or The Math Forum.
|
|
Jos
Posts:
1,265
Registered:
10/24/08
|
|
Re: Using Intersect Without Removing Repetitions
Posted:
Jan 10, 2013 8:01 AM
|
|
"zcbtf89" wrote in message <kcm7q0$m1u$1@newscl01ah.mathworks.com>...
> I would like to do the following:
>
> [C ind] = intersect(A,B);
>
> Where A(100,1), is a vector with a list of consecutive values from 1 to 1000 in a random order (i.e. value 3 is in row 11),
> And B (5,1) is a vector with a shorter list of values all of which occur in A at some location. However there are some repetitions i.e. [1 3 5 5 70] ...
>
> I would like my output vector 'ind' to account for these repetitions in B, such that the index in A repeats itself. i.e. for the above example ind = [ 1 11 25 25 100].
>
> Any help regarding this would be much appreciated,
>
> Thanks!
I think ISMEMBER can do that for you
[tf,ind] = ismember(B,A)
~ Jos
|
|
|
|
