Displaying 20 results from an estimated 2000 matches similar to: "need help and its urgent!"
2006 Oct 27
0
VGAM package released on CRAN
Dear useRs,
upon request, the VGAM package (currently version 0.7-1) has been
officially released on CRAN (the package has been at my website
http://www.stat.auckland.ac.nz/~yee/VGAM for a number of years now).
VGAM implements a general framework for several classes of
regression models using iteratively reweighted least squares
(IRLS). The key ideas are Fisher scoring, generalized linear
and
2002 Jan 13
0
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were hungry and each took out a banana. Just as the first man
took a bite of his, the train entered a tunnel and everything went
dark. The man said to
2002 Jan 13
1
vorbis´Ô ¾È³çÇϼ¼¿ä? *^^*((¿µ¾î & ÀϾî mailing service È«º¸))*^^*
:::Happy mail::: Happymail ¹× ±âŸ ¹®ÀÇ 02-588-0510 2002³â 1¿ù
¢Ã Ä£±¸ÀÇ Ãæ°í
¢Ñ [¿µ¾î·Î ¿ô¾î¿ä] ¿ø¹®º¸±â A man and his friend were travelling on a train. They decided they
were hungry and each took out a banana. Just as the first man
took a bite of his, the train entered a tunnel and everything went
dark. The man said to
2012 Feb 21
1
Questions on Data reading using zoo package
Hello,
I try to handle the data using read.csv , zoo and aggregate functions.
The data contains NA values. After aggregating monthly data into quarterly
data, all data become NA. Is it because I don't properly aggregate the data
in the presence of NAs? What can I do?
Another problem is that the date in month is presented in Chinese (My OS
is in Chinese.) How can I set the default
2006 Oct 05
1
Matrix input problem
Hi,
Included is an R.script that came from a much large date set being
read in to R from a .txt file. Why is it that the first line codes with
an error, but the second line works fine? Is there some line length
limit in R? This happens at random places all through my data. Any help
would be appreciated.
--------------------------------------------------------------------
Bill Wyatt
2002 Jul 15
1
特价电脑配件、手提电脑、手机，货到付款
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1.cpu
InteI p4 2G/1.8G/1.7G(Socket478) £¤ 500/420/390Ôª
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2002 Jun 28
1
windres problem
Hello,
I am trying to build an R package for Windows from an R package
for Linux. There seems to be a "windres" problem somewhere.
Here's what I get.
C:\Temp>Rcmd build --binary VGAM > mm
make[2]: windres: Command not found
make[2]: *** [VGAM_res.o] Error 127
make[1]: *** [src/VGAM.dll] Error 2
make: *** [pkg-VGAM] Error 2
In more details, it goes like the following.
2008 Oct 10
0
Problems and bugs in vgam()
Hello R-Users,
I have recently run into several problems using vgam() in the VGAM
package. I am hoping someone might have some solutions...
Briefly, I have been trying to fit GAM models for zero-altered negative
binomial models.
1. When fitting smoothed parameters (e.g. s(X, df=2)) changing the
degrees-of-freedom has no effect on the level of smoothing (e.g. number
of knots for the
2012 Jan 10
1
S4 summary method not being called (VGAM)
The symptom triggering this email is that an S4 summary method sometimes refuses to be invoked, even when a package is explicitly loaded, if the first load of the package is implicit. It may or may not be specific to 'summary' methods and/or the 'VGAM' package. I've sent to R-devel because (i) it looks like some kind of bug to me, but I'm not sure; (ii) it's not
2011 Dec 24
2
readLines errors
Hi All,
I met a problem using readLines function to return the data from Google
maps.
readLines(url("
http://ditu.google.cn/maps/geo?q=+qianshuichong,+guichi+anhui,+CN&output=csv&key=ABQIAAAAq8Fnd_oUka-7RdS6BrD7GBTqeABoQuNTXS36G_rkiwQnKRW6GBTkns8JpKz6y6dScgB8827dlddUlg"),
n=1, warn=FALSE)
[1] "200,4,30.6528380,117.4872250"
The above code is ok because the
2004 May 18
0
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2008 Feb 15
0
Poisson-lognormal probability calculations
Hi,
just for the record, although I don't think it's relevant (!)
-------------------------------------
> sessionInfo()
R version 2.6.0 (2007-10-03)
i386-pc-mingw32
locale:
LC_COLLATE=English_United Kingdom.1252;LC_CTYPE=English_United
Kingdom.1252;LC_MONETARY=English_United
Kingdom.1252;LC_NUMERIC=C;LC_TIME=English_United Kingdom.1252
attached base packages:
[1] stats4 splines
2008 Feb 18
0
Solved (??) Behaviour of integrate (was 'Poisson-lognormal probab ility calculations')
Hi Again,
I think I've solved my problem, but please tell me if you think I'm wrong,
or you can see a better way!
A plot of the integrand showed a very sharp peak, so I was running into the
integrand "feature" mentioned in the note. I resolved it by limiting the
range of integration as shown here:
--------------------------------------------------
function (x, meanlog = 0,
2008 Feb 15
0
Behaviour of integrate (was 'Poisson-lognormal probability calcul ations')
Hi again,
Adding further information to my own query, this function gets to the core
of the problem, which I think lies in the behaviour of 'integrate'.
-------------------------------------
function (x, meanlog = 0, sdlog = 1, ...) {
require(stats)
integrand <- function(t, x, meanlog, sdlog) dpois(x,t)*dlnorm(t,
meanlog, sdlog)
mapply(function(x, meanlog, sdlog, ...)
#
2007 May 31
0
VGAM package
Hi, R-users
Could someone help me to understand this following error. I'm using vglm
function in VGAM package
Best regards and thank you for your ehlp
########
mydata <- read.table("Data2_overruns.csv", sep =";", header = T,
row.names=NULL)
> attach(mydata)
>
> y <- mydata$cat.event
> phase.vol <-mydata$phase.vol
> pilote <- mydata$pilote
2008 Nov 14
0
VGAM package released on CRAN
Dear Prof. Thomas Yee
I$B!G(Bm very interested in your R program VGAM.
I tried below your data:
# Nonparametric proportional odds model
data(pneumo)pneumo = transform(pneumo,
let=log(exposure.time))vgam(cbind(normal,mild,severe) ~ s(let),
cumulative(par=TRUE), pneumo)
However, the results by Version of VGAM are different;
----------The result by Version 0.7-7
2010 Feb 17
1
Error while installing 'netmodels'
Dear all ,
I am trying to install a package by name 'netmodels' keep
on getting the following error :
> install.packages("netmodels")
Warning in install.packages("netmodels") :
argument 'lib' is missing: using '/usr/lib64/R/library'
also installing the dependency ‘VGAM’
trying URL
2005 May 28
3
Incompatibility with VGAM
I just discovered that when the VGAM package (not on CRAN) is loaded,
glm() doesn't work. This is because VGAM defines a family function()
which gets found
by glm() in place of the family function from stats.
Then VGAM:::family returns an object which doesn't have a $family
component, (it has a component
$vfamily).
I thought namespaces should protect us from this happening?
Kjetil
--
2011 Jun 22
2
VGAM constraints-related puzzle
Hello R users,
I have a puzzle with the VGAM package, on my first excursion into
generalized additive models, in that this very nice package seems to
want to do either more or less than what I want.
Precisely, I have a 4-component outcome, y, and am fitting multinomial
logistic regression with one predictor x. What I would like to find
out is, is there a single nonlinear function f(x) which acts
2008 Apr 18
2
rzinb (VGAM) and dnbinom in optim
Dear R-help gurus (and T.Yee, the VGAM maintainer) -
I've been banging my head against the keyboard for too long now, hopefully someone can pick up on the errors of my ways...
I am trying to use optim to fit a zero-inflated negative binomial distribution. No matter what I try I can't get optim to recognize my initial parameters. I think the problem is that dnbinom allows either