Displaying 20 results from an estimated 5000 matches similar to: "New package `party': A Laboratory for Recursive Part(y)itioning"
2005 Jun 03
0
New CRAN package `coin'
Conditional Inference Procedures in a Permutation Test Framework
The `coin' package implements a general framework for conditional
inference procedures, commonly known as permutation tests,
theoretically derived by Strasser & Weber (1999). The conditional
expectation and covariance for a broad class of multivariate linear
statistics as well as the corresponding multivariate limiting
2005 Jun 03
0
New CRAN package `coin'
Conditional Inference Procedures in a Permutation Test Framework
The `coin' package implements a general framework for conditional
inference procedures, commonly known as permutation tests,
theoretically derived by Strasser & Weber (1999). The conditional
expectation and covariance for a broad class of multivariate linear
statistics as well as the corresponding multivariate limiting
2002 Apr 10
1
New Package: ipred - Improved predictors
The package ipred is uploaded to CRAN.
The main focus of the package is the calculation of improved predictors
in classification tasks. Misclassification error can be improved by
bootstrap aggregated classification trees and/or
the framework of indirect classification. Furthermore, a unified
interface for the estimation of misclassification error
completes the features of ipred.
We try to make
2002 Apr 10
1
New Package: ipred - Improved predictors
The package ipred is uploaded to CRAN.
The main focus of the package is the calculation of improved predictors
in classification tasks. Misclassification error can be improved by
bootstrap aggregated classification trees and/or
the framework of indirect classification. Furthermore, a unified
interface for the estimation of misclassification error
completes the features of ipred.
We try to make
2009 Feb 27
0
[SoC09-Idea] Party On!
Hi Manuel,
find our SoC proposal below.
Best wishes,
Torsten & Achim
_______________________________________________________________________
Party On! New Recursive Partytioning Tools.
Mentor: Torsten Hothorn & Achim Zeileis
Short Description:
The aim of the project is the implementation of recursive partitioning
methods ("trees") which aren't available in R at the
2002 Jun 20
1
new package `multcomp'
New package `multcomp' for general multiple comparisons
written by Frank Bretz, Torsten Hothorn and Peter Westfall
We've uploaded the package `multcomp' to CRAN.
The R package allows for multiple comparisons of
k groups in general linear models. We use the unifying
representations of multiple contrast tests, which include all
common multiple comparison procedures, such as the
2002 Jun 20
1
new package `multcomp'
New package `multcomp' for general multiple comparisons
written by Frank Bretz, Torsten Hothorn and Peter Westfall
We've uploaded the package `multcomp' to CRAN.
The R package allows for multiple comparisons of
k groups in general linear models. We use the unifying
representations of multiple contrast tests, which include all
common multiple comparison procedures, such as the
2004 Apr 26
1
Segfault: .Call and classes with logical slots
Hi,
the following example aiming at a class containing a logical slot
segfaults under R-1.9.0 when `gctorture(on = TRUE)' is used:
Code code (dummy.c):
#include <Rdefines.h>
SEXP foo() {
SEXP ans;
PROTECT(ans = NEW_OBJECT(MAKE_CLASS("test")));
SET_SLOT(ans, install("lgl"), allocVector(LGLSXP, 1));
LOGICAL(GET_SLOT(ans,
2004 Mar 03
2
read.spss and time/date information
I don't use SPSS but following through on your detective work
can provide the likely answer.
First note that both date numbers are evenly divisible by the number
of seconds in a day, i.e. 24*60*60. This suggests that these numbers
are seconds since some origin.
Since we know "2003/02/11" corresponds to 13264300800 we deduce that
the origin must be
spss.orig <-
2006 Feb 15
1
S3 generics without NS and cleanEx()
Good morning,
we recently observed a problem with importing S3 generics from a foreign
package (without namespace), defining a S3 method in a package _with_
namespace and the `cleanEx()' function which is automatically generated
and executed before examples are run by R CMD check.
To be more precise. Package `strucchange' defines a S3 generic
sctest <- function(x, ...)
2003 May 08
0
multcomp and lme (followup)
I just realized that in the call to `csimint' the argument `asympt=TRUE'
is missing since we need to compute the confidence intervals for a glm
based on the normal approximation.
Torsten
---------------------------------------------------------------------
library(multcomp)
set.seed(290875)
# a factor at three levels
group <- factor(c(rep(1,10), rep(2, 10), rep(3,10)))
# Williams
2002 Jul 09
1
RE: mvtnorm package installation failure
Hi,
Thank you for the tip.
I tried to re-intall R from Debian "stable", in which R's version is 1.4.0. And the installation
of "mvtnorm" works.
I then re-installed R yet again from Debian "unstable" (woody), in which R's version is 1.5.1.
The installation of "mvtnorm" fails again with the same error message. Another package that
failed with the
2002 Oct 29
0
updated package "lmtest" 0.9-2
Dear R users,
there is a new version of the package `lmtest' for testing linear
regression models on CRAN. Except for a couple of minor bug fixes,
there are essentially these new features:
o added Breusch-Godfrey test for serial correlation
(thanks to David M. Mitchell who provided the initial version
of the code for bgtest)
o new data sets:
mandible measurements in fetuses,
2001 Oct 18
0
General Matrix Inverse
Generalised Inverse:
The Moore-Penrose Generalisied Inverse is probably better defined as a
pseudo-Inverse that arises in solving least squares problems.
Another well known pseudo-Inverse is the so-called Drazin pseudo-Inverse.
If memory serves (and it's been 10-12 years!) it can be obtained via a
diagonalisation.
Anyway, I dare say Prof. Ripley (among others) probably has "all the
2002 Oct 28
1
RFC: no automatic updates of packages with major version chan ge
Is it possible to have a slightly more elaborate description, such as:
BackwardCompatibleTo: x.x-x
and if the new version is _not_ backward compatible, this would be the
current version number?
Just my $0.02...
Andy
-----Original Message-----
From: Torsten Hothorn [mailto:Torsten.Hothorn@rzmail.uni-erlangen.de]
Sent: Monday, October 28, 2002 7:25 AM
To: ripley@stats.ox.ac.uk
Cc:
2001 Dec 10
1
Error on start
r-devel from this morning says
hothorn@www:~ > R
R : Copyright 2001, The R Development Core Team
Version 1.4.0 Under development (unstable) (2001-12-09)
R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type icense()' or icence()' for distribution details.
R is a collaborative project with many contributors.
Type
2006 Oct 24
0
New version of `multcomp' on CRAN
Dear useRs,
`multcomp' version 0.991-1 will be shortly available from
CRAN near you. Nearly all functionality contained in the
package has been re-implemented from scratch.
The focus of the package has been extended to general linear
hypotheses in arbitrary parametric models and the most important
function to check out is `glht()'. Multiple comparison of
means procedures (for example
2006 Oct 24
0
New version of `multcomp' on CRAN
Dear useRs,
`multcomp' version 0.991-1 will be shortly available from
CRAN near you. Nearly all functionality contained in the
package has been re-implemented from scratch.
The focus of the package has been extended to general linear
hypotheses in arbitrary parametric models and the most important
function to check out is `glht()'. Multiple comparison of
means procedures (for example
2006 Dec 21
0
Online course - Modeling in R
Drs. Brian Everitt and Torsten Hothorn will present their online course
"Modeling in R" at statistics.com Jan. 19 - Feb. 16. Participants can ask
questions and exchange comments with Drs. Everitt and Hothorn via a private
discussion board throughout the period.
In this course you learn how to use R to build statistical models and use
them to analyze data. Multiple regression is
2001 Feb 01
1
postscript and lty
To the plot experts:
when creating a plot containing different lines, each with a special line
type, it may happen that the result of 'postscript()' is not readable by
ghostview (which may not be an R error, thus not bug report ;-).
This is the case when mixing lty as 0:6 and character or even when
using lty as character only.
Example:
postscript("test.ps")
plot(1:10,