dtRates | R Documentation |
BAMM
outputdtRates
calculates the mean of the marginal posterior
density of the rate of speciation/extinction or trait evolution for
small segments along each branch in a phylogeny.
dtRates(ephy, tau, ism = NULL, tmat = FALSE)
ephy |
An object of class |
tau |
A numeric that specifies the size (as a fraction of tree height) of the segments that each branch will be discretized into. |
ism |
An integer vector indexing which posterior samples to include in the calculation. |
tmat |
A logical. If |
dtRates
bins the phylogeny into windows of time and
calculates average rates of speciation/extinction or phenotypic
evolution along each segment of a branch within a window. The width of
each window is determined by tau
. tau
is a fraction of
the root to tip distance so a value of tau = 0.01
bins the
phylogeny into 100 time windows of equal width.
A bammdata
object with a new component named "dtrates", which
is a list with two or three components:
tau: The parameter value of tau
used in the
calculation.
rates: If ephy$type = "trait"
: a numeric vector with
the phenotypic rates of each segment on each branch. If
ephy$type = "diversification"
: a list with two
components. The first component is a numeric vector of
speciation rates. The second component is a numeric vector of
extinction rates.
tmat: A matrix of the starting and ending times of the
segments on each branch. Only if tmat = TRUE
.
If there are zero length branches in the input tree NA
s will
result.
Mike Grundler
plot.bammdata
data(whales, events.whales)
ed <- getEventData(whales, events.whales, burnin=0.25, nsamples=500)
# use all posterior samples
ed <- dtRates(ed, tau=0.01)
# use specified range of posterior samples
ed <- dtRates(ed, tau=0.01, ism=50:150)
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.