 | | | rhelp | | Something like this is exploited very nicely in the mtx.exp
for matrix powers in the Malmig package actually.
****************************
Hi
I have been wondering if there one can speed up calcuHi
I have been wondering if there one can speed up calculating small powers
of numbers such as x^8 using multiplication.
In addition one can be a bit clever and calculate x^8 using only 3
multiplHello and apologies for a very long question. I thought it better to be
verbose and clear than short and imprecise. I am trying to compute the brier
score comparing true surv object of test data to prDear Group
I 'm still trying to bring many data into R (see older postings). After solving some troubles with the database I do most of the work in MySQL. But still I could be nice to work on some dat
Dear David Dear Friends
After any running svm I receive different results of Error estimation of 'svm ' using 10-fold cross validation. What is the reason ? It is caused by the algorithm libsvm
Dear R Users
Could somebody please compare the packages of unit root test ( Uroot Ucra tseries and fseries ) regarding the type of test ( without constant and trend with constant and with I couldn 't resist adding a more literal answer
unback <- function(x) {
chars <- unlist(strsplit(deparse(x) " "))
chars <- chars[-c(1 length(chars))]
paste(gsub( "\\\\ " "/ " chars) collapse " ")
}
Dear R users
I have a data with 1000 variables named "x1 " "x2 " ... "x1000 " and
I want to construct a formula like this format
~x1+x2+...+x1000+x1 x2+x1 x3+x999 x1000+log(x1)+...+log(x1000)
ThI feel like a dope for asking this but after reading various articles I 'm
still not quite sure I get it. What is the relationship or similarity
between a "probability " prediction from a classficatiI 'm working with the kmeans function in the stats package. This
function calls complied fortran program
.Fortran( "kmns " as.double(x).....)
Is there a way to get the source code for this comHi all
I was wondering how to create a graph (boxplot) setting the y range of the
graph manually. Something like this
>x <- c(1 100)
>boxplot(x yrange(0 1000))
Thanks for your time
Adrian
_Hi
I am a user of R computer language.Several days ago I download R-2.1.0.From
the help manual I saw there is a function "mle " to find the maximum
likelihood estimators.But when I try to use this fOn Tuesday 28 June 2005 15 30 r-help-request@(protected) wrote
Re 37. Re A. Mani colours in Silhouette (Mulholland Tom)
>
> Message 37
> Date Tue 28 Jun 2005 09 08 24 +0800
> FroHi there
Could anybody help me on how to sort a dataframe by one variable in the
dataframe?
Thank you
Lisa Wang
Princess Margaret Hospital
Toronto Ca
tel 416 946 4501
Hi
I have a big dataset which has many missing values and want to implement
Multiple imputation via Monte carlo markov chain by following J Schafer 's
"Analysis of incomplete multivariate data ". I For the following code is there a way to make the jitter all line up horizontally instead of them being just randomly spread around a value. So for ex if there are multiple values at 63 for genotype
Newbies (and others!) may find useful the R Reference Card made available by
Tom Short and Rpad at http //www.rpad.org/Rpad/Rpad-refcard.pdf or through
the "Contributed " link on CRAN (where some oDear List
How can I convert a list with elements being character strings like
"c(1 2 3 4) " �c(1 3 4 2) � to a list with elements as numerical
vectors c(1 2 3 4) c(1 3 4 2)�?
Thanks!
Anna
______JGR users on Windows may be interested that Sun has released a preview
of its latest Java development kit and runtime engine at
http //www.java.net/download/jdk6/binaries/
This removes the main pro Have you tried "VarCorr(f) "?
spencer graves
liqiu jiang wrote
> Dear R users
> I fitted a repeated measure model without random effects by using lme. I will use the estimates from that modDear R users
I fitted a repeated measure model without random effects by using lme. I will use the estimates from that model as an initial estimates to do multiple imputation for missing values of tHi user 's
How to modify the color background on lattice plot. I am trying to
plotting histogram from lattice package.
Thank very much
*********************************
Juan Carlos Quiroz
Instituto XLSolutions Corporation (www.xlsolutions-corp.com) is proud to
announce 2-day "R/S-plus Fundamentals and Programming
Techniques " at 4 locations nationwide.
www.xlsolutions-corp.com/Rfund.htm
****SeaI am curious if there is code developed to plot confidence regions in 3D.
The scatterplot3d function generates the plot I want but would like an 3D
equivalent to the data.ellipse function.
Any help Hi
do anyone know which statistical software have the Brown-Forsythe Test for
differences of numerical continue data groups wich variance heterogenity?
not ofr evaluate the homogenity of variances
Hi a question about the circular mean function in the package
CircStats
Can anyone shed some light on why the circ mean function seems to make
sense for the first 2 set of bearings and then the meHi
I need to calculate Kendall 's tau for large data
vectors (length > 100 '000).
Is somebody aware of a faster algorithm or package
function than "cor( method "kendall ") "?
There are ties in the daDear All
I 've a question about scaling the input variables for an analysis with svm (package e1071). Most of my variables are factors with 4 to 6 levels but there are also some numeric variables.
II sent this to r-devel the other day but didn 't get any takers. This
may not be a bug but rather an inconsistency.
I 'm not sure if this is intentional. summary.lm stores weighted
residuals whereas Hello!
Does someone know how to produce
L(y|mu)
with plotmath?
Some code with unsuccessfull results
plot(dnorm(x seq(from -4 to 4 by 0.1)) type "l ")
## Not what I want
legend(lege |
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