Displaying 20 results from an estimated 4000 matches similar to: "Using R in C++"
2009 Jan 08
1
cosinor analysis
Hallo,
I didnĀ“t found any facilities for Halbergs cosinor analysis in R. This analysis is well known in the Chronobiology as the least square approximation of time series using cosine function of known period (in my case of 24hours-period). I tried to write a script but crashed...
Can you give me some advices, please!?
Thanks
Anne Berger
Institute of Zoo- and Wildlife Research, Berlin, Germany
2006 Nov 09
4
Plotting symbols with two positions?
Thanks a lot to Demitris for a prompt answer some minutes ago on another
tread (see below). To avoid excess mails on the list, I move onto next
question:
I have another small plotting problem that confuses me. I want to plot
results from a field trial series, using the numbers of the trials as
symbols in the plot.
pch = as.character(trial_no)
works fine, but truncates the trial number to the
2006 Jun 08
2
Plotting female and male signs
Dear R-users,
Just like other users (as seen from previous posts on the list), I would
like to use female and male signs in plots. I found B. Ripley's post
about using Unicode characters. However, it doesn't works for me.
> text(locator(1),"\u2640") produces the following error:
Error: invalid \uxxxx sequence
But I can specify other Unicode characters as long I
2003 Apr 14
1
Problem with nlme or glmmPQL (MASS)
Hola!
I am encountering the following problem, in a multilevel analysis,
using glmmPQL from MASS. This occurs with bothj rw1062 and r-devel,
respectively with nlme versions 3.1-38 and 3.1-39 (windows XP).
> S817.mod1 <- glmmPQL( S817 ~ MIEMBROScat+S901+S902A+S923+URBRUR+REGION+
+
S102+S103+S106A+S108+S110A+S109A+S202+S401+S557A+S557B+
+ YHOGFcat,
2013 Dec 02
1
pesky \usage-warnings with R CMD check
I?m in the process of preparing a package for CRAN.
The package is called ?exportR? and since it really just consists of one function, I found it natural to call it ?exportR? too.
The function returns a function that does the actual job, but it is set up to work in different ways, depending on the arguments given to its creator. In short:
library( exportR )
exporter <- exportR( the, arguments
2009 Jul 10
1
Degree of freedom in the linear mixed effect model using lme function in R
Hello,
I would appreciate if somebody could help me clear my mind about the below issues.
I have a factorial experiment to study the effects of Grazing and Fire on Forest biomass production. The experimental unit (to which the treatment combinations are applied) are PLOTs. The measures were made repeatedly for 13 years.
I am planning to use the linear mixed effect model function lme in R for this.
2009 Nov 11
1
update.packages()
Dear all,
W.XP
I recently upgraded to R2.10.0 and did what I usually do: copied all
"special" libraries from the old installation and then used
"update.packages()" on the command line. Nothing happened. Then I clicked
on the same command on the droplist which generated
"update.packages(ask='graphics')", but still with no effect.
When I tried to load the
2007 Nov 30
1
Boxplots illustrating the fixed effects in a lme object
Hello all,
I posted a similar question recently but I suspect that it was not well
enough formulated to trigger any answers. So I try again:
Is there a way to produce boxplots (or something similar) that uses the
estimated fixed effects of an lme{nlme} object? When I want to know the
mean, I use estimable{gmodels} together with an appropriate matrix. I did
look for a similar tool to estimable in
2013 Mar 30
1
special character encoding problem
Hi,
I have a question about special character: when I create a data
frame including some special characters, like '?', it displayed as
'<U+00F8>'. I understand that it's one encoding code for '?'. but I
want to display the letter as '?' on my screen. And more, when I save
the data frame to a local position, it was also save as the encoding
code
2005 Jan 28
3
Conflicts using Rcmdr, nlme and lme4
Hello all!
R2.0.1, W2k. All packages updated.
I?m heavily dependant on using mixed models. Up til?now I have used
lme() from nlme as I have been told to. Together with estimable() from
gmodels it works smooth. I also often run Rcmdr, mostly for quick
graphics.
After using Rcmdr, on reopening the R workspace all help libraries for
Rcmdr (22 !) loads, among them nlme, but not Rcmdr itself. Why?
2007 Jul 23
1
The 'REP' term in AMMI{agricolae}
Dear all,
W2k, R 2.5.1
I am trying out the AMMI function in the agricolae package, to analyse the
dependence of environment for a certain cultivar. The function responds to
four basic variables:
ENV Environment
GEN Genotype
REP Replication
Y Response
My question concerns the 'REP' term. When I normally do an analysis of
variance, the replication would refer to repeated observations
2007 Aug 16
1
Regression tree: labels in the terminal nodes
Dear everybody,
I'm a new user of R 2.4.1 and I'm searching for information on improving
the output of regression tree graphs.
In the terminal nodes I am up to now able to indicate the number of
values (n) and the mean of all values in this terminal node by the command
> text(tree, use.n=T, xpd=T)
Yet I would like to indicate automatically in the output graph of the
tree some
2005 Nov 03
1
Problems with abline adding regression line to a graph
Hello all,
R2.1.1, W2k
I try to make a plot of a simple regression model in this way:
> with(njfA_bcd, {
+ plot(TC_OS.G31,Prot,cex = 2, col = "red", xlab= "TC/OS at GS32",
+ ylab="Grain crude protein (CP)")
+ })
This part works well and produces the datapoints as red circles.
When I try to add a line, using a fitted linear model in a way
that works perfect
2005 Jan 14
1
Fine tuning scatterplot() (car package)
Hello all!
System: R2.0.1, W2k.
All packages apdated with update.packages().
I use the default graphic device for my system (no active choice).
I?m trying to fine-tune scatterplot() graphs (package car), for
publication.
I want to control plotting symbols and colours to match plots from
other, less flexible, systems. I also need to make all text and
symbols bigger, to enable printing of the
2009 Nov 25
4
Structural Equation Models(SEM)
Hi R-colleagues.
In the sem-package
i have a problem to introduce hidden variables.
As a simple example I take an ordinary factor analysis.
The program:
cmat=c(0.14855886, 0.05774635, 0.08003300, 0.04900990,
0.05774635, 0.18042029, 0.11213013, 0.03752475,
0.08003300, 0.11213013, 0.24646337, 0.03609901,
0.04900990, 0.03752475, 0.03609901, 0.31702970)
2000 Mar 06
2
f2c question
Hello,
I decided to try to compile R version 1.0.0 on my home-hacked linux
system. This is not a conventional distribution, but has been upgraded
countless numbers of times (I think it started as a 1.2.13). It's up to
2.2.13 (kernel version) and I still use gcc 2.7.2.3. I have managed to
deal with the fortran part of R with f2c. As it turns out I can compile
the program OK, but when it
2007 Jul 19
2
Subsetting dataframes
Dear all!
W2k, R 2.5.1
I am working with an ongoing malting barley variety evaluation within
Sweden. The structure is 25 cultivars tested each year at four sites, in
field trials with three replicates and 'lattice' structure (the replicates
are divided into five sub blocks in a structured way). As we are normally
keeping around 15 varieties from each year to the next, and take in 10 new
2004 Nov 22
2
Danish characters i R2.0.1 vs R1.9.1 under winXP
Hi all.
After upgrading to R2.0.1 i get
> "??"
[1] "??"
> "??"
[1] "\370"
> "??"
[1] "??"
Whereas under R1.9.1 i get
> "??"
[1] "??"
> "??"
[1] "??"
> "??"
[1] "??"
Any hints apreciated.
Steen
Steen Ladelund, statistician
+4543233275
2009 Oct 23
3
opposite estimates from zeroinfl() and hurdle()
Dear all,
A question related to the following has been asked on R-help before, but
I could not find any answer to it. Input will be much appreciated.
I got an unexpected sign of the "slope" parameter associated with a
covariate (diam) using zeroinfl(). It led me to compare the estimates
given by zeroinfl() and hurdle():
The (significant) negative estimate here is surprising, given
1999 Feb 11
2
Installing on DEC 4.0b Alpha Server 2100A
Greetings,
I am trying to install R (0.63.2) on a Digital Unix 4.0b
Alpha Server 2100A using gcc 2.8.1 and f77 v 0.5.2.3. It
seems to compile OK. However, when I try to run R I get
the following message:
R : Copyright 1999, The R Development Core Team
Version 0.63.2 (January 12, 1999)
R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under