Displaying 20 results from an estimated 800 matches similar to: "variance components"
2003 Sep 03
2
SNK-test
How can I perform a Student-Newman-Keuls-Test for multiple comparision of means in R?
(I did not manage to find any specific function in the libraries)
Jörg Peter Baresel
Technische Universität München
Institut für Ackerbau und INformatik im Pflanzenbau
D-85354 Freising
Lange Point 51
[[alternative HTML version deleted]]
2003 Feb 07
3
RMySQL
Being relatively new to R, I want to use R in connection with a MySQL database.
After installing (apparently sucessfully) the package RMySQL (R Version 1.6.2)
the result is as follows:
> library(RMySQL)
> con <- dbConnect(MySQL(), dbname= "test")
Error: couldn''t find function "dbConnect"
Thank You in advance for help
Peter
Jörg Peter Baresel
Technische
2008 Jun 25
2
R 2.7.1 und WinEdt (PR#11806)
Hi,
under the new version R 2.7.1 I can't use WinEdt. It seems that there is
a bug in that version. To use older versions of the package RWinEdt
doens't bring success. The Use of R 2.7.0 doesn't cause that Problem.
Regards,
Hans-J?rgen Auinger
--
----------------------------------------------
Hans-J?rgen Auinger
Lehrstuhl f?r Pflanzenz?chtung
Wissenschaftszentrum Weihenstephan
2017 Oct 10
1
Unbalanced data in split-plot analysis with aov()
Dear all,
I'm analysing a split-plot experiment, where there are sometimes one or
two values missing. I realized that if the data is slightly unbalanced,
the effect of the subplot-treatment will also appear and be tested
against the mainplot-error term.
I replicated this with the Oats dataset from Yates (1935), contained in
the nlme package, where Variety is on mainplot, and nitro on
2012 Apr 24
1
Upgrading from 3.2 to 3.5
Hi,
I'm going to migrate from SAMBA 3.2 to 3.5 (Debian Lenny -> Squeeze).
The server is an AD member and uses ACLs.
Are there any preliminary steps to make the upgrade as smooth as
possible? What kind of problems could I expect?
Best Regards,
Christian
--
__________________________________________
Christian Reischl
Fraunhofer Institut f?r
Verfahrenstechnik und Verpackung
Giggenhauser
2009 Jan 07
1
Question about the RWEKA package
Dear List,
I´m trying to implement the functionalities from WEKA into my modeling project in R through the RWeka package.
In this context I have a slightly special question about the filters implemented in WEKA.
I want to convert nominal attributes with k values into k binary attributes through the NominalToBinary filter ("weka.filters.supervised.attribute.NominalToBinary"). But
2008 Mar 26
4
Want to draw 3D cylinder objects
Hello,
I want to draw 3D cylinder objects in R.
Given is the length and the diameter of the cylinder.
Has anybody an example?
Thank you very much!
Best regards
--
----------------------
Dr. Hans-Joachim Klemmt
Forstoberrat
Organisationsprogrammierer IHK
Bayerische Landesanstalt f?r Wald und Forstwirtschaft
zugewiesen an
Lehrstuhl f?r Waldwachstumskunde
Technische Universit?t M?nchen
2009 Jan 15
2
problems with extractPrediction in package caret
Hi list,
I´m working on a predictive modeling task using the caret package.
I found the best model parameters using the train() and trainControl() command. Now I want to evaluate my model and make predictions on a test dataset. I tried to follow the instructions in the manual and the vignettes but unfortunately I´m getting an error message I can`t figure out.
Here is my code:
rfControl <-
2018 Feb 13
3
Suppress horizontal mean line in beanplot()
Hi,
I would like to use the beanplot() function from the beanplot package.
Unfortunately, I can't find out how to suppress the dashed horizontal
line, that shows the overall mean.
In the help I've found the argument "overallline", but it only allows
for "mean" or "median" .
I have tried overallline = F, overallline="n", and
2010 Aug 27
3
predict.loess and NA/NaN values
Hi!
In a current project, I am fitting loess models to subsets of data in
order to use the loess predicitons for normalization (similar to what
is done in many microarray analyses). While working on this I ran into
a problem when I tried to predict from the loess models and the data
contained NAs or NaNs. I tracked down the problem to the fact that
predict.loess will not return a value at all
2010 Oct 20
1
problem with predict(mboost,...)
Hi,
I use a mboost model to predict my dependent variable on new data. I get the following warning message:
In bs(mf[[i]], knots = args$knots[[i]]$knots, degree = args$degree, :
some 'x' values beyond boundary knots may cause ill-conditioned bases
The new predicted values are partly negative although the variable in the training data ranges from 3 to 8 on a numeric scale. In order to
2011 Apr 08
3
xyplot, groups and colors
Dear ExpeRts,
I am trying to plot a bunch of growth curves and would like to get
some more control over groups and line colors than I seem to have.
Example:
# make some data
dat <- Orange
dat$group <- ifelse(dat$Tree%in%c('1','4','5'), 'A', 'B')
# plot
xyplot(circumference~age, dat, groups=group)
# now use lines to make the growth curve more
2009 Jan 22
4
dimnames in pkg "ipred"
Hello List,
I`m trying to make prediction using a bagged tree with the package ipred. I tried to follow the manual but I`m getting an error message. Also browsing through the list-archive I didn`t find any hint.
Maybe someone can help me?
selbag <- bagging(SOIL_UNIT ~., data=traindat.bin, coob=TRUE)
Error in dimnames(X) <- list(dn[[1L]], unlist(collabs, use.names = FALSE)) :
2011 Apr 27
1
read.table: fill=T for header?
Dear ExpeRts,t
I am trying to read tab delimted data produced by somewhat brain dead
software that seems to think it's a good idea to have an extra tab
character after the last column - except for the header line. As
explained in the help page, read.delim now assumes that the first
column contains the row.names (which is not even wrong) but now and all
col.names get shiftet by one column.
2015 Jun 08
1
Two-way forest trust with selective authentication and SAMBA 3.6 as member
Hello Everybody,
we have authentication problems with the mentioned configuration.
Current situation:
We have two Windows 2008 R2 domains (currently on 2003 level) in
separate forests. Recently we created a two-way trust with selective
authentication between them.
A Debian Squeeze LTS machine running SAMBA 3.6.6 (latest Backports
version) is member of our primary domain and provides file
2009 Apr 07
0
gbm for multi-class problems
Dear List,
I´m working on a classification problem. My response has 60 levels.
I`m very interested in boosted trees like AdaBoost or gradient boosting machine as implemented in the package "gbm". Unfortunately gbm is only applicable for 2-class problems.
Is anybody out there who can help me? Is there a way to use gbm() for multi-class problems? Maybe there is a way to transform my
2008 May 21
0
Fwd: Re: opensuse10.3 host and windows XP guest via Xen/Vbx
-------- Original-Nachricht --------
Datum: Wed, 21 May 2008 18:12:59 +0800
Von: "Jon Ervine" <jon.ervine@gmail.com>
An: "Jörg Kühne" <joerg.kuehne@gmx.net>
Betreff: Re: [Xen-users] opensuse10.3 host and windows XP guest via Xen/Vbx
2008/5/21 "Jörg Kühne" <joerg.kuehne@gmx.net>:
> Hello
>
> did anyone may made some experience with the
2005 Apr 13
2
Combine univariate time series
Hallo everyone
I have two univariate time series (class ts) describing the same variable. They have the same resolution, but span different periods in time with a big gap in between. I need to append one to the other such that they are one object, with the gap filled with NAs. The method ts.union produces a multivariate time series where the time axis is correct, but the individual time series
2003 Oct 10
1
incorrect behaviour of formals (PR#4511)
Full_Name: Jörg Polzehl
Version: 1.8.0
OS: Windows XP
Submission from: (NULL) (62.141.176.1)
I encountered a problem when playing with the mle library and specifying
negative
starting values for the parameters.
The reason seems to be an incorrect behaviour of function formals:
glike<-function(a=1,b=1,c=1) a
> formals(glike)
$a
[1] 1
$b
[1] 1
$c
[1] 1
> unlist(formals(glike))
a b c
2003 Feb 27
0
spatial evolution and variance after rotation of Principal components
Dear R users,
I have been doing rotation on Principal components analyse, with varimax
function and promax. Following those changes, I cannot find now how to get
the spatial evolution and the variance. Indeed, with the function princomp
that has been used to get the principal components, arguments such as $scores
and $sdev were available to get the spatial evolution and the variance, with