is.ultrametric: Test if a Tree is Ultrametric
In gjuggler/ape: Analyses of Phylogenetics and Evolution
Description
Usage
Arguments
Details
Value
Author(s)
See Also
Description
This function computes the distances from each tip to the root: if the
variance of these distances is null, the tree is considered as
ultrametric.
Usage
1
is.ultrametric(phy, tol = .Machine$double.eps^0.5)
Arguments
phy
an object of class "phylo".
tol
a numeric >= 0, variation below this value are considered
non-significant (see details).
Details
The default value for tol is based on the numerical
characteristics of the machine R is running on.
Value
a logical: TRUE if the tree is ultrametric, FALSE
otherwise.
Author(s)
Emmanuel Paradis
See Also
gjuggler/ape documentation built on May 17, 2019, 6:03 a.m.
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Description Usage Arguments Details Value Author(s) See Also
Description
This function computes the distances from each tip to the root: if the variance of these distances is null, the tree is considered as ultrametric.
Usage
1 | is.ultrametric(phy, tol = .Machine$double.eps^0.5)
|
Arguments
phy |
an object of class |
tol |
a numeric >= 0, variation below this value are considered non-significant (see details). |
Details
The default value for tol is based on the numerical
characteristics of the machine R is running on.
Value
a logical: TRUE if the tree is ultrametric, FALSE
otherwise.
Author(s)
Emmanuel Paradis
See Also
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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