Displaying 20 results from an estimated 700 matches similar to: "a matter of etiquette/Fw: dmvsnorm & mvst in fMultivar"
2008 Sep 17
0
fMultivar functions not loading under R-2.7
I submitted this to rmetrics help list as well...
I've been using R-2.4 with Rmetrics successfuly for a year or two.
I recently moved to Ubuntu Linux 8.04, loaded R via apt-get install R-base
etc. etc...
then in the R interface i ran install.packages("fMultivar"), chose the CRAN
mirror and it loaded fMultivar and all the required dependecies.
However, when I try to run the same
2006 Jan 23
1
mutlivariate normal and t distributions
Dear R-help list members,
I have created a package 'mnormt' with facilities for the multivariate
normal and t distributions. The core part is simply an interface to
Fortran routines by Alan Genz for computing the integral of two
densities over rectangular regions, using an adaptive integration
method. Other R functions compute densities and generate random
numbers.
The starting
2003 Feb 04
1
downloaf.file
Dear List-members,
to download a file from the net, the function download.file(..)
does the job. However, before embarking on the download, I would
like to find out how large the file is. Is there a way to know it?
Most easily, this question has been asked before, but I am new to
the list.
Regards, with thanks in advance,
Adelchi Azzalini
----
Adelchi Azzalini <azzalini at
2003 Jun 21
1
optim with contraints
There seems to exist peculiar cases where optim does not take care
of constraints on the parameters to be optimized over. The call to
optim is of the form
opt <- optim(cp, fn=sn.dev, gr=sn.dev.gh, method="L-BFGS-B",
lower=c(-Inf, 1e-10, -0.99527),
upper=c( Inf, Inf, 0.99527),
control=control, X=X, y=y, hessian=FALSE)
The code has worked fine
2003 May 20
4
Output to connections
In the document "R Data Import/Export", section "Output to connections",
there is the following portion of code:
## convert decimal point to comma in output, using a pipe (Unix)
zz <- pipe(paste("sed s/\\./,/ >", "outfile"), "w")
cat(format(round(rnorm(100), 4)), sep = "\n", file = zz)
close(zz)
## now look at the output
2001 Mar 01
1
docs + packages (PR#858)
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# Please copy the bug report (after finishing it) to
# your favorite email program and send it to
#
# r-bugs@r-project.org
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######################################################
Today I have installed R 1.02.1 on my MSW-95 laptop;
it essentially worked, but thre are two
2007 Apr 04
0
to findout maximized log likelihoods by using rlarg.fit (for several r order statistics)
Dear R helpers,
I need to find out maximized log likelihoods,
parameters estimates and standard errors (in
parentheses) of r largest-order statistics model, with
different values of r by using the function rlarg.fit.
I want to specify required number of order statistics
to the model. I attached my data file with this
mail.please help me.
Ruposh
--- r-help-request at stat.math.ethz.ch wrote:
2009 Feb 27
0
R crash on Mac
If I define this function
R> ask <- function (message = "Type in datum")
eval(parse(prompt = paste(message, ": ", sep = "")))
the following is produced as expected on a Linux/debian machine
R> ask("input")
input: 3
[1] 3
R> ask("input")
input: 3:6
[1] 3 4 5 6
R> ask("input")
input: c(3,6)
[1] 3 6
If I
1999 Apr 23
1
[S] uniroot -- doesn't work recursively
Dear Prof Azzalini,
You have an interesting example of recursive use of uniroot().
[re-cited at the end]
However, note that R currently has the same problem as S-plus:
Uniroot() doesn't work reliably, recursively.
When you found it to be better, you were just lucky.
The relevant file in R's source, src/main/optimize.c
says
/* WARNING : As things stand, these routines should
2006 Dec 13
3
Error to install fMultivar package
Hi,
I tried to install fMultivar package but an error occurs that I could not
understand.
(I've been worked with linux / Ubuntu 6.06 LTS)
> install.packages("fMultivar")
Warning in install.packages("fMultivar") : argument 'lib' is missing: using
/usr /local/lib/R/site-library
--- Please select a CRAN mirror for use in this session ---
Loading Tcl/Tk
2006 Aug 15
1
fMultivar OLS - how to do dynamic regression?
Hi folks!
Does anybody know how to use the OLS function in fMultivar to do dynamic
regression? I've tried specifying lags in OLS using a data series
created in fSeries and it doesn't seem to work. I've done dynamic
regression using dyn$lm and I was wondering how to accomplish the same
thing using the OLS function from fMultivar. Thanks!
John
[[alternative HTML version
2007 Jul 03
2
EWMA in fMultivar
Hello, I would like to use the function EWMA() in the fMultivar Package and I
have a series of data x, which is the returns series. Basically, I would
like to get the variance estimation using EWMA.
I am trying something like EWMA(x, lambda) and I have a couple of questions:
Should x be the returns series or price series in my case?
When I get the result, there are the same numbers of data
2017 Nov 17
0
HTML documentation is not in the expected location
On 17/11/2017 10:47 AM, Adelchi Azzalini wrote:
> Since I have updated my Linux system, and consequently re-installed R, I
> am unable to see HTML documentation which I used to access via a web
> browser. To be more specific, my R installation is declared to be here:
>
> > R RHOME
> /usr/local/lib/R
>
> However, if I look at a location such as
>
2017 Nov 17
2
HTML documentation is not in the expected location
Since I have updated my Linux system, and consequently re-installed R, I
am unable to see HTML documentation which I used to access via a web
browser. To be more specific, my R installation is declared to be here:
> R RHOME
/usr/local/lib/R
However, if I look at a location such as
/usr/local/lib/R/library/base/html
this contains only two entries
File: 00Index.html
File: R.css
2011 Jan 16
1
\examples{} in Rd file
[Hope this is the right list where to send...]
An attempt to update package 'mnormt' involves the addition of a
small new function called 'pd.solve'. When I come to the package
checking stage, an error occurs in parsing pd.solve.Rd.
The full transcript of the outcome is copied below (it includes details
on my installation) but the critical point is where the \examples{}
section
2008 Oct 14
0
Fwd: sn package - skew t - code for analytical expressions for first 4 moments
Hello
please note that the code at
https://stat.ethz.ch/pipermail/r-help/2006-August/110892.html
to compute indices of skewness and kurtosis for the skew-t
distribution is not correct.
It has been kindly pointed out that i made some error in this code,
which was a bit too quickly copied from the paper.
The 'sn' package already contains a facility for computing
the cumulants, namely
2007 Sep 27
0
New version (2.2) of the sm package
The sm package (by Adrian Bowman and Adelchi Azzalini) implements a
variety of nonparametric smoothing techniques, centred on nonparametric
regression for one or two covariates and density estimation for up to
three variables. A new version of the package is now available on CRAN.
In an earlier unannounced version (2.1), a variety of methods of
bandwidth
selection were added, with default
2007 Sep 27
0
New version (2.2) of the sm package
The sm package (by Adrian Bowman and Adelchi Azzalini) implements a
variety of nonparametric smoothing techniques, centred on nonparametric
regression for one or two covariates and density estimation for up to
three variables. A new version of the package is now available on CRAN.
In an earlier unannounced version (2.1), a variety of methods of
bandwidth
selection were added, with default
2003 Apr 15
1
References of R in use (SHORT SUMMARY)
Dear R-list,
about one month back I posted here a question/idea that it would be nice to
have
some list of references of R in use plus some other "marketing" arguments
for R to promote it.
Thanks for all your responses.
I was given useful responses from Armin Roehrl, Jim Lemon, Edith Hodgen,
Ko-Kang Kevin Wang,
Charles Berry, Martin Maechler, Spencer Graves, Paul Gilbert, Adelchi
1999 Apr 07
2
Bug list summary (automatic post)
=================================================
This is an automated summary of the status of the R-bugs
repository.
Note that this may be neither complete nor perfectly
correct at any given instance: Not all bugs are reported,
and some reported bugs may have been fixed, but the
repository not yet updated.
Some bug fixes are difficult to verify because they pertain
to specific hardware or