Dear R experts,

I have a labeled data set. Each data is assigned a binary label 0 or 1.
Assume that I use some clustering algorithm to group the data by clusters
(using some features of the data). Now I want to know how many data are
labeled as 0/1 in each cluster.

For example, assume that I have 9 labeled data grouped into three clusters.
The ids of the clusters are 1, 2, and 3.  The dataset is represented by the
following matrix:

        membership        Label
d1    1                        0
d2    1                        0
d3    1                        1
d4    2                        0
d5    2                        1
d6    2                        1
d7    3                        1
d8    3                        1
d9    3                        1

Now I want to get the following output, telling me how many data are labeled
as 0 and 1 in each cluster

cluster_id    0-data    1-data
1                2            1
2                1            2
3                0            3

The output does not have to be a matrix, it could be a summary of the
statistics.

How should I approach this problem? What R functions should I use to get
such information?

Thanks so much!

Boya

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