agnes
This class of objects is returned from
agnes
.
The
"agnes"
class has methods for the following generic functions:
print
,
summary
,
plot
.
The class
"agnes"
inherits from
"hierarchical"
.
Therefore, the generic function
pltree
can be used on an
agnes
object.
A legitimate
agnes
object is a list with the following components:
order
, but containing observation labels instead of
observation numbers. This component is only available if the original
observations were labeled.
ac
is the average of all 1 - m(i). It can also be seen as the average
width (or the percentage filled) of the banner plot.
Because
ac
grows with the number of observations, this measure should not
be used to compare datasets of very different sizes.
merge
describes the merging of clusters at step i of the clustering. If a number
j in the row is negative, then the single observation |j| is merged at this
stage. If j is positive, then the merger is with the cluster formed at
stage j of the algorithm.
"dissimilarity"
, representing the total dissimilarity
matrix of the dataset.
stand
option of the function
agnes
. If a dissimilarity matrix was
given as input structure, then this component is not available.