I am not sure what statistical test to use for comparing clustering on related data.
I have two sets of measurements on each person. I cluster each person by each measurement. I then measure how much the two coincide. I want to know how I would test for how significance the agreement of the clustering is.
For example I have 10 people and for each person I have two sets of attributes say vector A and Vector B both 10 of length 10.
I cluster the 10 people into 2 clusters using vector A and get something like
1 2 1 1 2 1 1 1 2 2
That is person one is assigned to cluster one, person two to cluster two person three to cluster one etc
I cluster the 10 examples into 2 clusters using vector B and get something like
1 2 1 1 2 1 1 1 1 1
These two clustering agree to 80% but how significant is this? What is the formula for calculating this? Is there a variant for more than 2 clusters? would it make sense if there were a different number of clusters for each measurement or if some samples only had one set of measurements?
Thank you for any thoughts :)