Displaying 20 results from an estimated 3000 matches similar to: "RGui crashes on wle call"
2003 Nov 24
1
mle in the gamma model
Dear [R]-list,
I'm looking for a classic equivalent of the wle.gamma function (library
wle) that estimate robustly the shape and the scale parameters of gamma
data.
I have a vector of iid gamma rv :
>data=rgamma(100,shape=10,scale=3)
and a vector of their weights:
>weights=c(rep(.5/70,70),rep(.25/20,20),rep(.25/10,10))
and want to estimate the scale and shape of the gamma
2007 May 11
1
model seleciton by leave-one-out cross-validation
Hi, all
When I am using mle.cv(wle), I find a interesting problem: I can't do
leave-one-out cross-validation with mle.cv(wle). I will illustrate the
problem as following:
> xx=matrix(rnorm(20*3),ncol=3)
> bb=c(1,2,0)
> yy=xx%*%bb+rnorm(20,0,0.001)+0
> summary(mle.cv(yy~xx,split=nrow(xx)-1,monte.carlo=2*nrow(xx),verbose=T),
num.max=1)[[1]]
mle.cv: dimension of the split subsample
2005 Dec 08
1
mle.stepwise versus step/stepAIC
Hello,
I have a question pertaining to the stepwise regression which I am trying to
perform. I have a data set in which I have 14 predictor variables
accompanying my response variable. I am not sure what the difference is
between the function "mle.stepwise" found in the wle package and the
functions "step" or "stepAIC"? When would one use
2015 Apr 15
2
Weighted Likelihood
Buenas tardes,
Estoy intentando ajustar distribuciones utilizando un vector de ponderación
en los datos (Weighted Likelihood). ¿Existen paquetes en R que resuelven
esto? He mirado ya el paquete "wle" pero no me permite introducir los pesos
mediante los cuales ponderar los datos.
En un primer momento, se me ha ocurrido realizar lo siguiente: repetir
cada elemento del vector datos
2012 Mar 16
1
Change in behavior of update.views()?
I haven't seen this cryptic warning before:
> update.views('Robust')
Warning message:
In update.views("Robust") :
The following packages are not available: covRobust, distr, FRB, MASS, mblm, multinomRob, mvoutlier, quantreg, RandVar, rgam, RobAStBase, robfilter, RobLox, RobRex, robust, RobustAFT, robustbase, ROptEst, ROptRegTS, rrcov, sandwich, wle
>
2002 Apr 06
2
packages in OS X
=======================================================================
Simple CRAN packages which do not compile without modifications (all
others do)
=======================================================================
-- akima
/usr/bin/ld: multiple definitions of symbol _idlc_
-- fracdiff
/usr/bin/ld: multiple definitions of symbol _gammfd_
(and others)
-- odesolve
--
2000 Dec 18
1
Packages for R 1.2.0 for Windows
I have re-built all the compiled packages for R 1.2.0 for Windows, and the
set available in CRAN/bin/windows/contrib are now for rw1020.
If you are upgrading to rw1020, please replace all the compiled
packages you have downloaded by ones from this set.
There a few packages available for the first time:
RMySQL mlbench netCDF
and a few that are not yet running on 1.2.0 on any platform
hdf5
2000 Dec 18
1
Packages for R 1.2.0 for Windows
I have re-built all the compiled packages for R 1.2.0 for Windows, and the
set available in CRAN/bin/windows/contrib are now for rw1020.
If you are upgrading to rw1020, please replace all the compiled
packages you have downloaded by ones from this set.
There a few packages available for the first time:
RMySQL mlbench netCDF
and a few that are not yet running on 1.2.0 on any platform
hdf5
2004 Nov 02
1
Robust Poisson regression
Hola!
Anybody knows if there exists somewhere in R some implementation of
robust Poisson regression,
where robust is taken in the sense as usen in rlm(MASS). I found
something in the package
wle, but only for the Poisson distribution, not for regression.
For the moment I try to use linear models with the square-root
transformation,
and rlm.
Kjetil
--
Kjetil Halvorsen.
Peace is the most
2011 Jun 23
1
Ranking submodels by AIC (more general question)
Here's a more general question following up on the specific question I
asked earlier:
Can anybody recommend an R command other than mle.aic() (from the wle
package) that will give back a ranked list of submodels? It seems like
a pretty basic piece of functionality, but the closest I've been able to
find is stepAIC(), which as far as I can tell only gives back the best
submodel, not a
2008 Dec 10
1
Stepwise regression
Hi,
I have the response variable 'Y' and four predictors say X1, X2, X3 and X4. Assuming all the assmptions like Y follows normal distribution etc. hold and I want to run linear multiple regression. How do I run the stepwise regression (forward as well as the backward regression).
>From other software (i.e. minitab), I know only X1 and X2 are significant so my regression equation
2001 Oct 11
2
Where's MVA?
Hi All:
Package TSERIES is stated to depend on MVA. However, there is no MVA package to be found under the list of package sources.
Best wishes,
ANDREW
tseries: Package for time series analysis
Package for time series analysis with emphasis on non-linear and non-stationary modelling Version: 0.7-6
Depends: ts, mva, quadprog
Date: 2001-08-27
Author: Compiled by Adrian
2005 Apr 28
6
shading in line plots
Hello,
I cannot figure out how to shade between two lines in a plot. For
example, if I am trying to plot a confidence envelope and I would like to
shade the interior of the envelope grey. Is this possible in R?
Thanks in advance.
Heather Lynch
2000 Dec 12
1
[Fwd: R code and robust regression]
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2006 May 18
2
Running a likelihood ratio test for a logit model
Hi all --
I have to calculate a likelihood ratio test for a logit model. I
found logLik, but I need to calculate the log likelihood for the model
without any predictors. How can I specify this in glm? If the full
model is glm(y ~ x1), is the one without predictors (y ~ 0)? Or (y ~
1)?
Is there a more direct way of getting this?
-- Chris
2001 Mar 07
1
[?] update.packages() - Linux
I am running R 1.2.1 under Mandrake Linux 7.2 (installed from RPM)
and I installed a few packages using install.packages() . Now, I
am trying to upgrade these packages using update.packages() but I
believe I am running into some kind of error. See below. Any tips
will be greatly welcome. Thanks in advance. Francisco
PS: update.packages() only tries to update wle from version 0.3
to 0.4, gives
2015 Apr 16
4
Weighted Likelihood
¡Muchas gracias Olivier!
Un saludo.
El 16 de abril de 2015, 10:44, Olivier Nuñez <onunez en unex.es> escribió:
> Mira el paquete survey.
> Un saludo. Olivier
>
> ----- Mensaje original -----
> De: "Víctor Nalda Castellet" <victor.nalda.castellet en gmail.com>
> Para: "r-help-es" <r-help-es en r-project.org>
> Enviados: Miércoles, 15 de
2003 Apr 22
7
Subject: Eliminate repeated components from a vector
X-Mailer: VM 7.00 under 21.4 (patch 6) "Common Lisp" XEmacs Lucid
Reply-To: fjmolina at lbl.gov
FCC: /home/f/.xemacs/mail/sent
Does anyone know how I can eliminate repeated elements from a vector?
2008 Jan 17
1
Any tools for working with US 2000 census data?
I've been given the job of extracting some data from the United States
2000 census (files at
http://www2.census.gov/census_2000/datasets/Summary_File_2/Maryland/all_
Maryland.zip 52M). I'm only interested in Census Block Groups (CBGs)
located within Baltimore City, Maryland. Additionally, I just have to
extract certain data fields. I think I'll be using Summary File 2. This
is my first
2008 Feb 13
3
Generalized nonlinear mixed model function?
I am wondering if there is an R function that could estimate a generalized
nonlinear mixed model.
>From my reading it seems that nlme from the nlme package can fit nonlinear
mixed models, while lmer from the lme4 package can fit generalized linear
mixed models.
One alternative I?ve found is gnlmix from the repeated package, although
this only allows for a single random effect.
Is there