Split Frequencies and Conversion Among Split Classes
bitsplits returns the bipartitions (aka splits) for a single
tree or a list of trees. If at least one tree is rooted, an error is
returned.
countBipartitions returns the frequencies of the bipartitions
from a reference tree (phy) observed in a list of trees (X), all unrooted.
as.bitsplits and as.prop.part are generic functions for
converting between the "bitsplits" and "prop.part"
classes.
bitsplits(x) countBipartitions(phy, X) as.bitsplits(x) ## S3 method for class 'prop.part' as.bitsplits(x) ## S3 method for class 'bitsplits' print(x, ...) ## S3 method for class 'bitsplits' sort(x, decreasing = FALSE, ...) as.prop.part(x, ...) ## S3 method for class 'bitsplits' as.prop.part(x, include.trivial = FALSE, ...)
x |
an object of the appropriate class. |
phy |
an object of class |
X |
an object of class |
decreasing |
a logical value to sort the bipartitions in increasing (the default) or decreasing order of their frequency. |
include.trivial |
a logical value specifying whether to include the trivial split with all tips in the returned object. |
... |
further arguments passed to or from other methods. |
These functions count bipartitions as defined by internal branches, so
they not work only with unrooted trees. The structure of the class
"bitsplits" is described in a separate document on ape's web
site.
bitsplits, as.bitsplits, and sort return an object
of class "bitsplits".
countBipartitions returns a vector of integers.
as.prop.part returns an object of class "prop.part".
Emmanuel Paradis
tr <- rtree(20) pp <- prop.part(tr) as.bitsplits(pp) ## works only with unrooted trees (ape 5.5): countBipartitions(rtree(10, rooted = FALSE), rmtree(100, 10, rooted = FALSE))
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