Displaying 20 results from an estimated 2000 matches similar to: "Barplot legend position"
2009 May 14
2
How to do a pretty panel plot?
The pretty picture that I saw at:
http://chartsgraphs.wordpress.com/2009/02/09/r-panel-chart-beats-excel-chart/#more-1096
inspired me to try something similar. The code that I wrote is:
------snipsnip---------------------------------------------------------------------
M <- structure(list(date = structure(c(13634, 13665, 13695, 13726,
13757, 13787, 13818, 13848, 13879, 13910, 13939, 13970,
2009 Jan 09
5
grep : escape "*"
Dear R useRs,
Sorry for this foolish question, but I can't find how to escape the *
character when using grep :
> grep("-", c("/3", "2*3", "4-4"))
[1] 3
> grep("/", c("/3", "2*3", "4-4"))
[1] 1
> grep("*", c("/3", "2*3", "4-4"))
Erreur dans grep("*",
2005 Mar 22
5
Convert timeseries to transition matrix
Hi All,
Does someone have an idea of how to cleverly convert a categorical
timeseries into a transition matrix?
Ie, I have something like:
x<- c(1,1,2,1,1,2,2,2,1,2),
And I want a matrix with counts and/or probabilities:
> tr <- matrix(c(2,3,2,2),2,2)
> tr
[,1] [,2]
[1,] 2 2
[2,] 3 2
Meaning that there are two transitions from 1 to 1, two from 1 to 2, three
from 2 to 1
2004 May 12
4
bus error macosx/off-topic
Hi All,
I'm building a package using C/C++ and Fortran code which usually runs fine.
However I do get occasional bus errors around the time of exiting one of the
C functions.
Where do I need to be looking to solve this problem?
Do bus errors stem from unmapped memory exceptions? How can I find out if
that is what is happening while running R?
Any hints greatly appreciated.
Best, ingmar
2009 Jan 30
2
error message with roxygen
Hello useRs,
I'm trying to use the Roxygen package.
Here my code file :
#' A packge to check Roxygen's sanity
#' @name helloRoxygen-package
#' @docType package
NA
And my R code to generate the package :
library(roxygen)
package.skeleton("helloRoxygen", code_files = "roxy.r", force = T)
roxygenize("helloRoxygen", "helloRoxygen",
2011 Feb 11
2
fitdistr question
Hello,
I tried to fit a poisson distribution but looking at the function
fitdistr() it does not optimize lambda but simply estimates the mean
of the data and returns it as lambda. I'm a bit confused because I was
expecting an optimization of this parameter to gain a good fit...
If I would use mle() of stats4 package or mle2() of bbmle package, I
would have to write the function by myself
2004 Mar 30
1
Console/command line output
Hi all,
I am working on Macos x 10.3 (Panther) to build a package consisting of
C/C++ code that is called from R. In the C/C++-sources I use several
commands to print info to the console:
std::cout << "info" << endl;
and:
Rprintf("info\n");
Both work fine when R is run on the command line but neither works when
running Raqau (I did check the preference boxes
2008 Apr 07
2
tcltk issue remains
Dear R-help,
I'm trying to load the fGarch package and keep running into problems
with tcltk:
After succesfully instaling fGarch (and dependencies) I get:
>library(fGarch)
Loading required package: fBasics
Loading required package: fImport
Loading required package: fSeries
Loading required package: robustbase
Loading required package: fCalendar
Loading required package: MASS
Loading
2005 May 22
3
constraints
Is there a package in R that handles general linear (in-)equality + box
constrained optimization?
If it is not there, could anyone advise me which way to go?
And/or point me to packages that solve these problems partially?
best, ingmar
--
Ingmar Visser
Department of Psychology, University of Amsterdam
Roetersstraat 15, 1018 WB Amsterdam
The Netherlands
http://users.fmg.uva.nl/ivisser/
tel:
2009 Mar 12
2
Time-Ordered Clustering
Hello All,
Does anyone know of a package that performs constraint-based clusters?
Ideally the package could perform "Time-Ordered Clustering", a technique
applied in a recent journal article by Runger, Nelson, Harnish (using MS
Excel). Quote, "in our specific implementation of constrained
clustering, the clustering algorithm remains agglomerative and
hierarchical, but observations
2006 Feb 28
3
any more direct-search optimization method in R
Hello list,
I am dealing with a noisy function (gradient,hessian not available) with
simple boundary constraints (x_i>0). I've tried constrOptim() using nelder
mead to minimize it but it is way too slow and the returned results are not
satisfying. simulated annealing is so hard to tune and it always crashes R
program in my case. I wonder if there are any packages or functions can do
2006 Jun 15
2
Name of a column
Un texte encapsul? et encod? dans un jeu de caract?res inconnu a ?t? nettoy?...
Nom : non disponible
Url : https://stat.ethz.ch/pipermail/r-help/attachments/20060615/8bdef5dc/attachment.pl
2012 Feb 22
4
Week number from a date
Hi
My data looks like this
startDate="2008-06-01"
dateRange =c( "2008-10-01","2008-12-01")
Is there any method to find the week number from the startDate range
-----
Thanks in Advance
Arun
--
View this message in context: http://r.789695.n4.nabble.com/Week-number-from-a-date-tp4410223p4410223.html
Sent from the R help mailing list archive at Nabble.com.
2008 Dec 17
1
repeated measures aov with weights
Dear R-help,
I'm facing a problem with defining a repeated measures anova with
weighted data.
Here's the code to reproduce the problem:
# generate some data
seed=11
rtrep <- data.frame(rt=rnorm(100),ti=rep(1:5,20),subj=gl
(20,5,100),we=runif(100))
# model with within factor for subjects/repeated measurements, no
problem
aov(rt~ti + Error(subj/ti),data=rtrep)
#model with weights
2012 Aug 27
2
randomLCA
Can anybody, please, explain me how many parameter are estimated using
randomLCA?
For examples, model "dentistry.lca2random" estimate 1 scale (or
variance, b_j) parameter and 2 position parameters (a_cj)? Doesn't
it?
Do I need at least 4 diagnostic tests for such a model?
What happens if I specify options blocksize and byclass? How many
diagnostic tests (or rater) I need?
2010 Dec 02
1
Hmm Topology restriction
Dear List,
We are using RHmm to cluster data through HMM. We would like to
restrict the transition matrix of HMM, to get hierarchical connections
between clusters. But, RHmm doesn't seem to support these
restrictions. Can any one suggest a library to do that.
Thanks,
Kishor
2007 Jan 05
1
Efficient multinom probs
Dear R-helpers,
I need to compute probabilties of multinomial observations, eg by doing the
following:
y=sample(1:3,15,1)
prob=matrix(runif(45),15)
prob=prob/rowSums(prob)
diag(prob[,y])
However, my question is whether this is the most efficient way to do this.
In the call prob[,y] a whole matrix is computed which seems a bit of a
waste.
Is there maybe a vectorized version of dmultinom which
2005 Dec 01
2
suppress checking chm files in R CMD check on Windows
Dear R-helpers,
When installing a source package I can suppress the compilation of .chm
files by using the --docs="normal" option. Is it also possible to suppress
the creation and checking of .chm files when calling R CMD check ?
best, ingmar
2006 Mar 23
2
invalid variable type in model.frame within a function
Dear expeRts,
I came across the following error in using model.frame:
# make a data.frame
jet=data.frame(y=rnorm(10),x1=rnorm(10),x2=rnorm(10),rvar=rnorm(10))
# spec of formula
mf1=y~x1+x2
# make the model.frame
mf=model.frame(formula=mf1,data=jet,weights=rvar)
Which gives the desired output:
> mf
y x1 x2 (weights)
1 0.8041254 0.1815366 0.4999551 1.4957814
2
2005 Sep 26
1
hidden markov models
Dear R community,
I am looking for an R package or other software to study hidden
Markov models. I need to be able to incorporate multivariate
emissions and covariates for the transition probabilities. The msm
package seems almost perfect for my purpose, but I do not think it
allows multivariate emissions.
I will be grateful for your suggestions.
All the best,
--
Emilio A. Laca
One