https://github.com/cran/ape
Tip revision: 3d09d262a2beb1ff3be8a4293f82df7d2a822622 authored by Emmanuel Paradis on 01 May 2007, 00:00:00 UTC
version 1.10
version 1.10
Tip revision: 3d09d26
Changes.txt
CHANGES IN APE VERSION 1.10
NEW FEATURES
o Five new `method' functions have been introduced to manipulate
DNA sequences in binary format (see below).
o Three new functions have been introduced to convert between the
new binary and the character formats.
o The new function as.alignment converts DNA sequences stored as
single characters into the class "alignment" used by the package
seqinr.
o read.dna() and read.GenBank() have a new argument `as.character'
controlling whether the sequences are returned in binary format
or as character.
BUG FIXES
o root() failed when the tree has node labels: this is fixed.
o plot.phylo() did not correctly set the limits on the y-axis with
the default setting: this is fixed.
o dist.dna() returned a wrong result for the LogDet, paralinear,
and BH87 models with `pairwise.deletion = TRUE'.
OTHER CHANGES
o DNA sequences are now internally stored in a binary format. See
the document "A Bit-Level Coding Scheme for Nucleotides" for
details. Most functions analyzing DNA functions have been
modified accordingly and are now much faster (dist.dna is ca. 60
times faster).
CHANGES IN APE VERSION 1.9-4
BUG FIXES
o A bug was fixed in edgelabels().
o as.phylo.hclust() did not work correctly when the object of
class "hclust" has its labels set to NULL: the returned tree has
now its tip labels set to "1", "2", ...
o consensus could fail if some tip labels are a subset of others
(e.g., "a" and "a_1"): this is now fixed.
o mlphylo() failed in most cases if some branch lengths of the
initial tree were greater than one: an error message is now
issued.
o mlphylo() failed in most cases when estimating the proportion of
invariants: this is fixed.
CHANGES IN APE VERSION 1.9-3
NEW FEATURES
o The new function edgelabels adds labels on the edge of the tree
in the same way than nodelabels or tiplabels.
BUG FIXES
o multi2di() did not handle correctly branch lengths with the
default option `random = TRUE': this is now fixed.
o A bug was fixed in nuc.div() when using pairwise deletions.
o A bug occurred in the analysis of bipartitions with large
numbers of large trees, with consequences on prop.part,
prop.clades, and boot.phylo.
o The calculation of the Billera-Holmes-Vogtmann distance in
dist.topo was wrong: this has been fixed.
CHANGES IN APE VERSION 1.9-2
NEW FEATURES
o The new function ladderize reorganizes the internal structure of
a tree to plot them left- or right-ladderized.
o The new function dist.nodes computes the patristic distances
between all nodes, internal and terminal, of a tree. It replaces
the option `full = TRUE' of cophenetic.phylo (see below).
BUG FIXES
o A bug was fixed in old2new.phylo().
o Some bugs were fixed in chronopl().
o The edge colours were not correctly displayed by plot.phylo
(thank you to Li-San Wang for the fix).
o cophenetic.phylo() failed with multichotomous trees: this is
fixed.
OTHER CHANGES
o read.dna() now returns the sequences in a matrix if they are
aligned (interleaved or sequential format). Sequences in FASTA
format are still returned in a list.
o The option `full' of cophenetic.phylo() has been removed because
it could not be used from the generic.
DEPRECATED & DEFUNCT
o rotate() has been removed; this function did not work correctly
since ape 1.9.
CHANGES IN APE VERSION 1.9-1
BUG FIXES
o Trees with a single tip were not read correctly in R as the
element `Nnode' was not set: this is fixed.
o unroot() did not set correctly the number of nodes of the
unrooted tree in most cases.
o read.GenBank() failed when fetching very long sequences,
particularly of the BX-series.
o A bug was introduced in read.tree() with ape 1.9: it has been
fixed
CHANGES IN APE VERSION 1.9
NEW FEATURES
o There are two new print `methods' for trees of class "phylo" and
lists of trees of class "multi.tree", so that they are now
displayed in a compact and informative way.
o There are two new functions, old2new.phylo and new2old.phylo,
for converting between the old and new coding of the class
"phylo".
o dist.dna() has three new models: Barry and Hartigan ("BH87"),
LogDet ("logdet"), and paralinear ("paralin").
o compute.brlen() has been extended: several methods are now
available to compute branch lengths.
o write.dna() can now handle matrices as well as lists.
BUG FIXES
o cophenetic.phylo() sometimes returned a wrong result with
multichotomous trees: this is fixed.
o rotate() failed when a single tip was specified: the tree is now
returned unchanged.
o ace() did not return the correct index matrix with custom
models: this is fixed.
o multi2di() did not work correctly when resolving multichotomies
randomly: the topology was always the same, only the arrangement
of clades was randomized: this is fixed. This function now
accepts trees with no branch lengths.
o The output of diversi.gof() was blurred by useless prints when a
user distribution was specified. This has been corrected, and
the help page of this function has been expanded.
OTHER CHANGES
o The internal structure of the class "phylo" has been changed:
see the document "Definition of Formats for Coding Phylogenetic
Trees in R" for the details. In addition, the code of most
functions has been improved.
o Several functions have been improved by replacing some R codes
by C codes: pic, plot.phylo, and reorder.phylo.
o There is now a citation information: see citation("ape") in R.
o write.tree() now does not add extra 0's to branch lengths so
that 1.23 is printed "1.23" by default, not "1.2300000000".
o The syntax of bind.tree() has been simplified. This function now
accepts trees with no branch lengths, and handles correctly node
labels.
o The option `as.numeric' of mrca() has been removed.
o The unused options `format' and `rooted' of read.tree() have
been removed.
o The unused option `format' of write.tree() has been removed.
o The use of node.depth() has been simplified.
CHANGES IN APE VERSION 1.8-5
NEW FEATURES
o Two new functions read.nexus.data() and write.nexus.data(),
contributed by Johan Nylander, allow to read and write molecular
sequences in NEXUS files.
o The new function reorder.phylo() reorders the internal structure
of a tree of class "phylo". It is used as the generic, e.g.,
reorder(tr).
o read.tree() and read.nexus() can now read trees with a single
edge.
o The new data set `cynipids' supplies a set of protein sequences
in NEXUS format.
BUG FIXES
o The code of all.equal.phylo() has been completely rewritten
(thanks to Beno羡 Durand) which fixes several bugs.
o read.tree() and read.nexus() now checks the labels of the tree
to remove or substitute any characters that are illegal in the
Newick format (parentheses, etc.)
o A negative P-value could be returned by mantel.test(): this is
now fixed.
CHANGES IN APE VERSION 1.8-4
NEW FEATURES
o The new function sh.test() computes the Shimodaira-
Hasegawa test.
o The new function collapse.singles() removes the nodes with a
single descendant from a tree.
o plot.phylo() has a new argument `tip.color' to specify the
colours of the tips.
o mlphylo() has now an option `quiet' to control the display of
the progress of the analysis (the default is FALSE).
BUG FIXES
o read.dna() did not read correctly sequences in sequential format
with leading alignment gaps "-": this is fixed.
o ace() returned a list with no class so that the generic
functions (anova, logLik, ...) could not be used directly. This
is fixed as ace() now returns an object of class "ace".
o anova.ace() had a small bug when computing the number of degrees
of freedom: this is fixed.
o mlphylo() did not work when the sequences were in a matrix or
a data frame: this is fixed.
o rtree() did not work correctly when trying to simulate an
unrooted tree with two tips: an error message is now issued.
OTHER CHANGES
o The algorithm of rtree() has been changed: it is now about 40,
100, and 130 times faster for 10, 100, and 1000 tips,
respectively.
CHANGES IN APE VERSION 1.8-3
NEW FEATURES
o There are four new `method' functions to be used with the
results of ace(): logLik(), deviance(), AIC(), and anova().
o The plot method of phymltest has two new arguments: `main' to
change the title, and `col' to control the colour of the
segments showing the AIC values.
o ace() has a new argument `ip' that gives the initial values used
in the ML estimation with discrete characters (see the examples
in ?ace). This function now returns a matrix giving the indices
of the estimated rates when analysing discrete characters.
o nodelabels() and tiplabels() have a new argument `pie' to
represent proportions, with any number of categories, as
piecharts. The use of the option `thermo' has been improved:
there is now no limitation on the number of categories.
BUG FIXES
o mlphylo() did not work with more than two partitions: this is
fixed.
o root() failed if the proposed outgroup was already an outgroup
in the tree: this is fixed.
o The `col' argument in nodelabels() and tiplabels() was not
correctly passed when `text' was used: this is fixed.
o Two bugs were fixed in mlphylo(): parameters were not always
correctly output, and the estimation failed in some cases.
o plot.phylo() was stuck when given a tree with a single tip: this
is fixed and a message error is now returned.
o An error was corrected in the help page of gammaStat regarding
the calculation of P-values.
o Using gls() could crash R when the number of species in the tree
and in the variables were different: this is fixed.
CHANGES IN APE VERSION 1.8-2
NEW FEATURES
o The new function mlphylo() fits a phylogenetic tree by maximum
likelihood from DNA sequences. Its companion function DNAmodel()
is used to define the substitution model which may include
partitioning. There are methods for logLik(), deviance(), and
AIC(), and the summary() method has been extended to display in
a friendly way the results of this model fitting. Currently, the
functionality is limited to estimating the substitution and
associated parameters and computing the likelihood.
o The new function drop1.compar.gee (used as, e.g., drop1(m))
tests for single effects in GEE-based comparative method. A
warning message is printed if there is not enough degrees of
freedom.
BUG FIXES
o An error message was sometimes issued by plot.multi.tree(),
though with no consequence.
CHANGES IN APE VERSION 1.8-1
NEW FEATURES
o There is a new plot method for lists of trees (objects of class
"multi.tree"): it calls plot.phylo() internally and is
documented on the same help page.
BUG FIXES
o A bug was fixed in the C code that analyzes bipartitions: this
has impact on several functions like prop.part, prop.clades,
boot.phylo, or consensus.
o root() did not work correctly when the specified outgroup had
more than one element: this is fixed.
o dist.dna() sometimes returned a warning inappropriately: this
has been corrected.
o If the distance object given to nj() had no rownames, nj()
returned a tree with no tip labels: it now returns tips labelled
"1", "2", ..., corresponding to the row numbers.
OTHER CHANGES
o nj() has been slightly changed so that tips with a zero distance
are first aggregated with zero-lengthed branches; the usual NJ
procedure is then performed on a distance matrix without 0's.
CHANGES IN APE VERSION 1.8
NEW FEATURES
o The new function chronopl() estimates dates using the penalized
likelihood method by Sanderson (2002; Mol. Biol. Evol., 19:101).
o The new function consensus() calculates the consensus tree of a
list of trees.
o The new function evolve.phylo() simulates the evolution of
continuous characters along a phylogeny under a Brownian model.
o The new plot method for objects of class "ancestral" displays a
tree together with ancestral values, as returned by the above
function.
o The new function as.phylo.formula() returns a phylogeny from a
set of nested taxonomic variables given as a formula.
o The new function read.caic() reads trees in CAIC format.
o The new function tiplabels() allows to add labels to the tips
of a tree using text or plotting symbols in a flexible way.
o The new function unroot() unroots a phylogeny.
o multi2di() has a new option, `random', which specifies whether
to resolve the multichotomies randomly (the default) or not.
o prop.part() now returns an object of class "prop.part" for which
there are print (to display a partition in a more friendly way)
and summary (to extract the numbers) methods.
o plot.phylo() has a new option, `show.tip.label', specifying
whether to print the labels of the tips. The default is TRUE.
o The code of nj() has been replaced by a faster C code: it is now
about 10, 25, and 40 times faster for 50, 100, and 200 taxa,
respectively.
o write.nexus() now writes whether a tree is rooted or not.
BUG FIXES
o Two bugs have been fixed in root(): unrooted trees are now
handled corretly, and node labels are now output normally.
o A bug was fixed in phymltest(): the executable couldn't be found
in some cases.
o Three bug have been fixed in ace(): computing the likelihood of
ancestral states of discrete characters failed, custom models
did not work, and the function failed with a null gradient (a
warning message is now returned; this latter bug was also
present in yule.cov() as well and is now fixed).
o pic() hanged out when missing data were present: a message error
is now returned.
o A small bug was fixed in dist.dna() where the gamma correction
was not always correctly dispatched.
o plot.phylo() plotted correctly the root edge only when the tree
was plotted rightwards: this works now for all directions.
OTHER CHANGES
o dist.taxo() has been renamed as weight.taxo().
o Various error and warning messages have been improved.
CHANGES IN APE VERSION 1.7
NEW FEATURES
o The new function ace() estimates ancestral character states for
continuous characters (with ML, GLS, and contrasts methods), and
discrete characters (with ML only) for any number of states.
o The new function compar.ou() fits the Ornstein-Uhlenbeck model
of directional evolution for continuous characters. The user
specifies the node(s) of the tree where the character optimum
changes.
o The new function is.rooted() tests whether a tree (of class
"phylo") is rooted.
o The new function rcoal() generates random ultrametric trees with
the possibility to specify the function that generates the
inter-nodes distances.
o The new function mrca() gives for all pairs of tips in a tree
(and optionally nodes too) the most recent common ancestor.
o nodelabels() has a new option `thermo' to plot proportions (up
to three classes) on the nodes of a tree.
o rtree() has been improved: it can now generate rooted or
unrooted trees, and the mathematical function that generates the
branch lengths may be specified by the user. The tip labels may
be given directly in the call to rtree. The limit cases (n = 2,
3) are now handled correctly.
o dist.topo() has a new argument `method' with two choices: "PH85"
for Penny and Henny's method (already available before and now
the default), and "BHV01" for the geometric distance by Billera
et al. (2001, Adv. Appl. Math. 27:733).
o write.tree() has a new option, `digits', which specifies the
number of digits to be printed in the Newick tree. By default
digits = 10. The numbers are now always printed in decimal form
(i.e., 1.0e-1 is now avoided).
o dist.dna() can now compute the raw distances between pairs of
DNA sequences by specifying model = "raw".
o dist.phylo() has a new option `full' to possibly compute the
distances among all tips and nodes of the tree. The default if
`full = FALSE'.
BUG FIXES
o Several bugs were fixed in all.equal.phylo().
o dist.dna() did not handle correctly gaps ("-") in alignments:
they are now considered as missing data.
o rotate() did not work if the tips were not ordered: this is
fixed.
o mantel.test() returned NA in some special cases: this is fixed
and the function has been improved and is now faster.
o A bug was fixed in diversi.gof() where the calculation of Aｲ was
incorrect.
o cherry() did not work correctly under some OSs (mainly Linux):
this is fixed.
o is.binary.tree() has been modified so that it works with both
rooted and unrooted trees.
o The documentation of theta.s() was not correct: this has been
fixed.
o plot.mst() did not work correctly: this is fixed.
CHANGES IN APE VERSION 1.6
NEW FEATURES
o The new function dist.topo() computes the topological distances
between two trees.
o The new function boot.phylo() performs a bootstrap analysis on
phylogeny estimation.
o The new functions prop.part() and prop.clades() analyse
bipartitions from a series of trees.
OTHER CHANGES
o read.GenBank() now uses the EFetch utility of NCBI instead of
the usual Web interface: it is now much faster (e.g., 12 times
faster to retrieve 8 sequences, 37 times for 60 sequences).
BUG FIXES
o Several bugs were fixed in read.dna().
o Several bugs were fixed in diversi.time().
o is.binary.tree() did not work correctly if the tree has no edge
lengths: this is fixed.
o drop.tip() did not correctly propagated the `node.label' of a
tree: this is fixed.
CHANGES IN APE VERSION 1.5
NEW FEATURES
o Two new functions, as.matching.phylo() and as.phylo.matching(),
convert objects between the classes "phylo" and "matching". The
latter implements the representation of binary trees introduced by
Diaconis and Holmes (1998; PNAS 95:14600). The generic function
as.matching() has been introduced as well.
o Two new functions, multi2di() and di2multi(), allow to resolve
and collapse multichotomies with branches of length zero.
o The new function nuc.div() computes the nucleotide diversity
from a sample a DNA sequences.
o dist.dna() has been completely rewritten with a much faster
(particularly for large data sets) C code. Eight models are
available: JC69, K80, F81, K81, F84, T92, TN93, and GG95 (the
option `method' has been renamed `model'). Computation of variance
is available for all models. A gamma-correction is possible for
JC69, K80, F81, and TN93. There is a new option, pairwise.deletion,
to remove sites with missing data on a pairwise basis. The option
`GCcontent' has been removed.
o read.GenBank() has a new option (species.names) which specifies
whether to return the species names of the organisms in addition
to the accession numbers of the sequences (this is the default
behaviour).
o write.nexus() can now write several trees in the same NEXUS file.
o drop.tip() has a new option `root.edge' that allows to specify the
new root edge if internal branches are trimmed.
BUG FIXES
o as.phylo.hclust() failed if some labels had parentheses: this
is fixed.
o Several bugs were fixed in all.equal.phylo(). This function now
returns the logical TRUE if the trees are identical but with
different representations (a report was printed previously).
o read.GenBank() did not correctly handle ambiguous base codes:
this is fixed.
OTHER CHANGES
o birthdeath() now returns an object of class "birthdeath" for
which there is a print method.
CHANGES IN APE VERSION 1.4
NEW FEATURES
o The new function nj() performs phylogeny estimation with the
neighbor-joining method of Saitou and Nei (1987; Mol. Biol.
Evol., 4:406).
o The new function which.edge() identifies the edges of a tree
that belong to a group specified as a set of tips.
o The new function as.phylo.phylog() converts an object of class
"phylog" (from the package ade4) into an object of class
"phylo".
o The new function axisPhylo() draws axes on the side of a
phylogeny plot.
o The new function howmanytrees() calculates the number of trees
in different cases and giving a number of tips.
o write.tree() has a new option `multi.line' (TRUE by default) to
write a Newick tree on several lines rather than on a single
line.
o The functionalities of zoom() have been extended. Several
subtrees can be visualized at the same time, and they are marked
on the main tree with colors. The context of the subtrees can be
marked with the option `subtree' (see below).
o drop.tip() has a new option `subtree' (FALSE by default) which
specifies whether to output in the tree how many tips have been
deleted and where.
o The arguments of add.scale.bar() have been redefined and have
now default values (see ?add.scale.bar for details). This
function now works even if the plotted tree has no edge length.
o plot.phylo() can now plot radial trees, but this does not take
edge lengths into account.
o In plot.phylo() with `type = "phylogram"', if the values of
`edge.color' and `edge.width' are identical for sister-branches,
they are propagated to the vertical line that link them.
BUG FIXES
o Repeated calls to as.phylo.hclust() or as.hclust.phylo() made R
crashing. This is fixed.
o In plot.phylo(), the options `edge.color' and `edge.width' are
now properly recycled; their default values are now "black" and
1, respectively.
o A bug has been fixed in write.nexus().
OTHER CHANGES
o The function node.depth.edgelength() has been removed and
replaced by a C code.
CHANGES IN APE VERSION 1.3-1
NEW FEATURES
o The new function nodelabels() allows to add labels to the nodes
of a tree using text or plotting symbols in a flexible way.
o In plot.phylo() the arguments `x.lim' and `y.lim' can now be two
numeric values specifying the lower and upper limits on the x-
and y-axes. This allows to leave some space on any side of the
tree. If a single value is given, this is taken as the upper
limit (as before).
CHANGES IN APE VERSION 1.3
NEW FEATURES
o The new function phymltest() calls the software PHYML and fits
28 models of DNA sequence evolution. There are a print method to
display likelihood and AIC values, a summary method to compute
the hierarchical likelihood ratio tests, and a plot method to
display graphically the AIC values of each model.
o The new function yule.cov() fits the Yule model with covariates,
a model where the speciation rate is affected by several species
traits through a generalized linear model. The parameters are
estimated by maximum likelihood.
o Three new functions, corBrownian(), corGrafen(), and
corMartins(), compute the expected correlation structures among
species given a phylogeny under different models of evolution.
These can be used for GLS comparative phylogenetic methods (see
the examples). There are coef() and corMatrix() methods and an
Initialize.corPhyl() function associated.
o The new function compar.cheverud() implements Cheverud et al.'s
(1985; Evolution 39:1335) phylogenetic comparative method.
o The new function varcomp() estimates variance components; it has
a plot method.
o Two new functions, panel.superpose.correlogram() and
plot.correlogramList(), allow to plot several phylogenetic
correlograms.
o The new function node.leafnumber() computes the number of leaves
of a subtree defined by a particular node.
o The new function node.sons() gets all tags of son nodes from a
given parent node.
o The new function compute.brlen() computes the branch lengths of
a tree according to a specified method.
o plot.phylo() has three new options: "cex" controls the size of
the (tip and node) labels (thus it is no more needed to change
the global graphical parameter), "direction" which allows to
plot the tree rightwards, leftwards, upwards, or downwards, and
"y.lim" which sets the upper limit on the y-axis.
BUG FIXES
o Some functions which try to match tip labels and names of
additional data (e.g. vector) are likely to fail if there are
typing or syntax errors. If both series of names do not perfectly
match, they are ignored and a warning message is now issued.
These functions are bd.ext, compar.gee, pic. Their help pages
have been clarified on this point.
CHANGES IN APE VERSION 1.2-7
NEW FEATURES
o The new function root() reroots a phylogenetic tree with respect
to a specified outgroup.
o The new function rotate() rotates an internal branch of a tree.
o In plot.phylo(), the new argument "lab4ut" (labels for unrooted
trees) controls the display of the tip labels in unrooted trees.
This display has been greatly improved: the tip labels are now not
expected to overlap with the tree (particularly if lab4ut =
"axial"). In all cases, combining appropriate values of "lab4ut"
and the font size (via "par(cex = )") should result in readable
unrooted trees. See ?plot.phylo for some examples.
o In drop.tip(), the argument `tip' can now be numeric or character.
BUG FIXES
o drop.tip() did not work correctly with trees with no branch
lengths: this is fixed.
o A bug in plot.phylo(..., type = "unrooted") made some trees being
plotted with some line crossings: this is now fixed.
CHANGES IN APE VERSION 1.2-6
NEW FEATURES
o Six new functions (Moran.I, correlogram.formula, discrete.dist,
correlogram.phylo, dist.taxo, plot.correlogram) have been added
to implement comparative methods with an autocorrelation approach.
o A new data set describing some life history traits of Carnivores
has been included.
BUG FIXES
o A fix was made on mcmc.popsize() to conform to R 2.0.0.
OTHER CHANGES
o When plotting a tree with plot.phylo(), the new default of the
option `label.offset' is now 0, so the labels are always visible.
CHANGES IN APE VERSION 1.2-5
NEW FEATURES
o The new function bd.ext() fits a birth-death model with combined
phylogenetic and taxonomic data, and estimates the corresponding
speciation and extinction rates.
OTHER CHANGES
o The package gee is no more required by ape but only suggested
since only the function compar.gee() calls gee.
CHANGES IN APE VERSION 1.2-4
NEW FEATURES
o Four new functions (mcmc.popsize, extract.popsize, plot.popsize,
and lines.popsize) implementing a new approach for inferring the
demographic history from genealogies using a reversible jump
MCMC have been introduced.
o The unit of time in the skyline plot and in the new plots can
now be chosen to be actual years, rather than substitutions.
CHANGES IN APE VERSION 1.2-3
NEW FEATURES
o The new function rtree() generates a random binary tree with or
without branch lengths.
o Two new functions for drawing lineages-through-time (LTT) plots
are provided: ltt.lines() adds a LTT curve to an existing plot,
and mltt.plot() does a multiple LTT plot giving several trees as
arguments (see `?ltt.plot' for details).
BUG FIXES
o Some taxon names made R crashing when calling as.phylo.hclust():
this is fixed.
o dist.dna() returned an error with two identical DNA sequences
(only using the Jukes-Cantor method returned 0): this is fixed.
OTHER CHANGES
o The function dist.phylo() has been re-written using a different
algorithm: it is now about four times faster.
o The code of branching.times() has been improved: it is now about
twice faster.
CHANGES IN APE VERSION 1.2-2
NEW FEATURES
o The new function seg.sites() finds the segregating sites in a
sample of DNA sequences.
BUG FIXES
o A bug introduced in read.tree() and in read.nexus() with version
1.2-1 was fixed.
o A few errors were corrected and a few examples were added in the
help pages.
CHANGES IN APE VERSION 1.2-1
NEW FEATURES
o plot.phylo() can now draw the edge of the root of a tree if it
has one (see the new option `root.edge', its default is FALSE).
BUG FIXES
o A bug was fixed in read.nexus(): files with semicolons inside
comment blocks were not read correctly.
o The behaviour of read.tree() and read.nexus() was corrected so
that tree files with badly represented root edges (e.g., with
an extra pair of parentheses, see the help pages for details)
are now correctly represented in the object of class "phylo";
a warning message is now issued.
CHANGES IN APE VERSION 1.2
NEW FEATURES
o plot.phylo() has been completely re-written and offers several
new functionalities. Three types of trees can now be drawn:
phylogram (as previously), cladogram, and unrooted tree; in
all three types the branch lengths can be drawn using the edge
lengths of the phylogeny or not (e.g., if the latter is absent).
The vertical position of the nodes can be adjusted with two
choices (see option `node.pos'). The code has been re-structured,
and two new functions (potentially useful for developpers) are
documented separately: node.depth.edgelength() and node.depth();
see the respective help pages for details.
o The new function zoom() allows to explore very large trees by
focusing on a small portion of it.
o The new function yule() fits by maximum likelihood the Yule model
(birth-only process) to a phylogenetic tree.
o Support for writing DNA sequences in FASTA format has been
introduced in write.dna() (support for reading sequences in
this format was introduced in read.dna() in version 1.1-2).
The function has been completely re-written, fixing some bugs
(see below); the default behaviour is no more to display the
sequences on the standard output. Several options have been
introduced to control the sequence printing in a flexible
way. The help page has been extended.
o A new data set is included: a supertree of bats in NEXUS format.
BUG FIXES
o In theta.s(), the default of the option `variance' has
been changed to `FALSE' (as was indicated in the help page).
o Several bugs were fixed in the code of all.equal.phylo().
o Several bugs were fixed in write.dna(), particularly this
function did not work with `format = "interleaved"'.
o Various errors were corrected in the help pages.
OTHER CHANGES
o The argument names of as.hclust.phylo() have been changed
from "(phy)" to "(x, ...)" to conform to the definition of
the corresponding generic function.
o gamma.stat() has been renamed gammaStat() to avoid confusion
since gamma() is a generic function.
CHANGES IN APE VERSION 1.1-3
BUG FIXES
o base.freq() previously did not return a value of 0 for
bases absent in the data (e.g., a vector of length 3 was
returned if one base was absent). This is now fixed (a
vector of length 4 is always returned).
o Several bugs were fixed in read.nexus(), including that this
function did not work in this absence of a "TRANSLATE"
command in the NEXUS file, and that the commands were
case-sensitive.
CHANGES IN APE VERSION 1.1-2
NEW FEATURES
o The Tamura and Nei (1993) model of DNA distance is now implemented
in dist.dna(): five models are now available in this function.
o A new data set is included: a set of 15 sequences of the
cytochrome b mitochondrial gene of the woodmouse (Apodemus
sylvaticus).
BUG FIXES
o A bug in read.nexus() was fixed.
o read.dna() previously did not work correctly in most cases.
The function has been completely re-written and its help page
has been considerably extended (see ?read.dna for details).
Underscores (_) in taxon names are no more replaced with
spaces (this behaviour was undocumented).
o A bug was fixed in write.dna().
CHANGES IN APE VERSION 1.1-1
BUG FIXES
o A bug in read.tree() introduced in APE 1.1 was fixed.
o A bug in compar.gee() resulted in an error when trying to fit
a model with `family = "binomial"'. This is now fixed.
CHANGES IN APE VERSION 1.1
NEW FEATURES
o The Klastorin (1982) method as suggested by Misawa and Tajima
(2000, Mol. Biol. Evol. 17:1879-1884) for classifying genes
on the basis of phylogenetic trees has been implemented (see
the function klastorin()).
o Functions have been added to convert APE's "phylo" objects in
"hclust" cluster objects and vice versa (see the help page of
as.phylo for details).
o Three new functions, ratogram(), chronogram() and NPRS.criterion(),
are introduced for the estimation of absolute evolutionary rates
(ratogram) and dated clock-like trees (chronogram) from
phylogenetic trees using the non-parametric rate smoothing approach
by MJ Sanderson (1997, Mol. Biol. Evol. 14:1218-1231).
o A summary method is now provided printing a summary information on a
phylogenetic tree with, for instance, `summary(tree)'.
o The behaviour of read.tree() was changed so that all spaces and
tabulations in tree files are now ignored. Consequently, spaces in tip
labels are no more allowed. Another side effect is that read.nexus()
now does not replace the underscores (_) in tip labels with spaces
(this behaviour was undocumented).
o The function plot.phylo() has a new option (`underscore') which
specifies whether the underscores in tip labels should be written on
the plot as such or replaced with spaces (the default).
o The function birthdeath() now computes 95% confidence intervals of
the estimated parameters using profile likelihood.
o Three new data sets are included: a gene tree estimated from 36
landplant rbcL sequences, a gene tree estimated from 32 opsin
sequences, and a gene tree for 50 BRCA1 mammalian sequences.
BUG FIXES
o A bug was fixed in dist.gene() where nothing was returned.
o A bug in plot.mst() was fixed.
o A bug in vcv.phylo() resulted in false correlations when the
option `cor = TRUE' was used (now fixed).
CHANGES IN APE VERSION 1.0
NEW FEATURES
o Two new functions, read.dna() and write.dna(), read/write in a file
DNA sequences in interleaved or in sequential format.
o Two new functions, read.nexus() and write.nexus(), read/write trees
in a NEXUS file.
o The new function bind.tree() allows to bind two trees together,
possibly handling root edges to give internal branches.
o The new function drop.tip() removes the tips in a phylogenetic tree,
and trims (or not) the corresponding internal branches.
o The new function is.ultrametric() tests if a tree is ultrametric.
o The function plot.phylo() has more functionalities such as drawing the
branches with different colours and/or different widths, showing the
node labels, controling the position and font of the labels, rotating
the labels, and controling the space around the plot.
o The function read.tree() can now read trees with no branch length,
such as "(a,b),c);". Consequently, the element `edge.length' in
objects of class "phylo" is now optional.
o The function write.tree() has a new default behaviour: if the default
for the option `file' is used (i.e. file = ""), then a variable of
mode character containing the tree in Newick format is returned which
can thus be assigned (e.g., tree <- write.tree(phy)).
o The function read.tree() has a new argument `text' which allows
to read the tree in a variable of mode character.
o A new data set is included: the phylogenetic relationships among
the orders of birds from Sibley and Ahlquist (1990).
CHANGES IN APE VERSION 0.2-1
BUG FIXES
o Several bugs were fixed in the help pages.
CHANGES IN APE VERSION 0.2
NEW FEATURES
o The function write.tree() writes phylogenetic trees (objects of class
"phylo") in an ASCII file using the Newick parenthetic format.
o The function birthdeath() fits a birth-death model to branching times
by maximum likelihood, and estimates the corresponding speciation and
extinction rates.
o The function scale.bar() adds a scale bar to a plot of a phylogenetic
tree.
o The function is.binary.tree() tests whether a phylogeny is binary.
o Two generic functions, coalescent.intervals() and collapsed.intervals(),
as well as some methods are introduced.
o Several functions, including some generics and methods, for computing
skyline plot estimates (classic and generalized) of effective
population size through time are introduced and replace the function
skyline.plot() in version 0.1.
o Two data sets are now included: the phylogenetic relationships among
the families of birds from Sibley and Ahlquist (1990), and an
estimated clock-like phylogeny of HIV sequences sampled in the
Democratic Republic of Congo.
DEPRECATED & DEFUNCT
o The function skyline.plot() in ape 0.1 has been deprecated and
replaced by more elaborate functions (see above).
BUG FIXES
o Two important bugs were fixed in plot.phylo(): phylogenies with
multichotomies not at the root or not with only terminal branches,
and phylogenies with a single node (i.e. only terminal branches)
did not plot. These trees should be plotted correctly now.
o Several bugs were fixed in diversi.time() in the computation of
AICs and LRTs.
o Various errors were corrected in the help pages.
