Apologies in advance if you receive multiple copies of this email.
This is to announce and invite your participation in a workshop on
Statistics in Functional Genomics, to be held from 27 June - 2 July
2004 at Ascona in the Italian-speaking part of Switzerland.
The purpose of the workshop is to
Follow the example in tseries, we can simulated a GARCH(0,2),
n - 1100
a - c(0.1, 0.5, 0.2) # ARCH(2) coefficients
e - rnorm(n)
x - double(n)
x[1:2] - rnorm(2, sd = sqrt(a[1]/(1.0-a[2]-a[3])))
for(i in 3:n) # Generate ARCH(2) process
{
x[i] - e[i]*sqrt(a[1]+a[2]*x[i-1]^2+a[3]*x[i-2]^2)
}
Hello!
why not try the R site search for peaks:
http://finzi.psych.upenn.edu/search.html
which gives you (among other things):
http://finzi.psych.upenn.edu/R/Rhelp02a/archive/7593.html
Hope this helps,
J.
Joerg Rieckermann
Environmental Engineering
Swiss Federal Institute for Environmental
Prelude for those not in the know:
GARCH models the variance of a times series
conditional on past information (often only the
series itself). It is a reasonably good model of
the variance of the returns of market-priced
assets, which display big jumps upwards in
variance followed by gradual
Have you tried www.r-project.org - search - R site search?
This issue has been discussed in the past. With luck, you may find
something there that might help.
hope this helps. spencer graves
Antonia Drugica wrote:
I'm quite new to this medical stuff. But my associates told me
Hi everybody,
Sorry for the OffTopic, but I always have a problem using apt-get to
update my debian siystem and R.
Anytime it updates the packages (right now I installed a self-compiled
version of 1.8.1), even if they are exactly the same. Anybody can help
me?
TIA,
Stefano
Thanks for you help,
And how to test covariance = zero in time series ,
cov(r_t, r_t-1)=0
and r_t are homoscedastik and dependent ?
How about:
?acf
?pacf
in package 'ts'
Box.test from package 'ts'
best
Adrian
--
Dr. Adrian Trapletti
Trapletti Statistical Computing
Wildsbergstrasse
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Hello
I'm very new to R (which is excellent), so apologies if this has already
been raised. In the spdep package, I'm trying to undertake an
autoregressive mixed model using the lagsarlm function. This is working
fine, but there does not appear to be a method of including an explanatory
Follow the example in tseries, we can simulated a GARCH(0,2),
n - 1100
a - c(0.1, 0.5, 0.2) # ARCH(2) coefficients
e - rnorm(n)
x - double(n)
x[1:2] - rnorm(2, sd = sqrt(a[1]/(1.0-a[2]-a[3])))
for(i in 3:n) # Generate ARCH(2) process
{
x[i] - e[i]*sqrt(a[1]+a[2]*x[i-1]^2+a[3]*x[i-2]^2)
}
Hi,
I try to figure out what the stl-function exactly do.
I was reading the paper by Cleveland et al. (1990) and tested some features of stl
(the ability to decompose time series with missing values and the robustness feature).
I tried the following:
data(co2)
co2.na - co2
On Thu, Nov 27, 2003 at 01:11:48PM +0100, Stefano Calza wrote:
Sorry for the OffTopic, but I always have a problem using apt-get to
update my debian siystem and R.
Anytime it updates the packages (right now I installed a self-compiled
version of 1.8.1), even if they are exactly the same.
On Thu, 27 Nov 2003, Antonia Drugica wrote:
I'm quite new to this medical stuff. But my associates told me that we are
not free in choice of Statistical Software because the FDA has high
standards concerning this topic. But if they would prefer a specific
package (like SAS) that could mean,
On Thu, 27 Nov 2003 07:48:02 +0100
Antonia Drugica [EMAIL PROTECTED] wrote:
I'm quite new to this medical stuff. But my associates told me that we
are not free in choice of Statistical Software because the FDA has high
standards concerning this topic. But if they would prefer a specific
Would you help me to answer this question, please?
/r/ is one of the most difficult English sounds to acquire and imitate. Describe in
what ways it is different from our Spanish rolls (perro) and taps (pero). How does
the pronunciation of this sound vary according to the context? Find at
Can you give us more details, please? Which version of Debian
(stable, testing or unstable) are you running and what are the
relevant parts of your /etc/apt/sources.list file? (Just send us the
whole file if you are not sure what parts are relevant.)
Ok. Find attach my source.list + the
From: Frank E Harrell Jr [EMAIL PROTECTED]
per year in SAS licenses and have to hire armies of non-intellectually
challenged SAS programmers to do the work of significantly fewer
programmers that use modern statistical computing tools like R and S-Plus,
it is surprising that SAS is still the
Hello,
I have some problems to generate graph with R...
I am working on two different platform :
- Compaq Alpha Server (Unix True 64 5.1) + R 1.6
- Sparc Server (Sun Solaris 8) + R 1.6
I use different functions like the bitmap function, the legend function and the
barplot function.
The
If indeed you used the bitmap() function, please read its help page.
The differences are very likely due to the installations of ghostscript
and nothing to do with R.
There never was an `R 1.6', but the current version of R is 1.8.1, so it
looks as if an update is well overdue.
On Thu, 27 Nov
Hello,
I'm looking for some guidance with the following problem:
I've 2 samples A (111 items) and B (10 items) drawn from the same unknown
population. Witihn A I find 9 positives and in B 0 positives. I'd like to
know if the 2 samples A and B are different, ie is there a way to find out
whether
I think the problem is that by default g77 is not installed. However you
should still be able to find the rpm on the CDROM.
HTH,
Andy
Thanks to all for your replies. Indeed the package gcc-g77 was on the
install disk, and I was able to install the R rpm with no problems.
J.R. Lockwood
I am trying to understand better an analysis mean RT in various
conditions in a within subjects design with the overall mean RT /
subject as one of the factors. LME seems to be the right way to do
this. using something like m- lme(rt~ a *b *subjectRT, random=
~1|subject) and then anova(m,type
English may have greater variation between regional dialects than
does Spanish, The Scots roll their r's, and I suspect it is more like
the Spanish rolls (perro) than taps (pero), though I have not had enough
contact with the Scots to judge. The English r may be closer to the r
in
Do you want to make inference about the specific subjects in your
study? If yes, the subjects are a fixed effect. If instead you want to
make inference about the societal processes that will generate the
subjects you will get in the future, that is a random effect. The
function lme
On Thu, 27 Nov 2003, Roy Sanderson wrote:
Hello
Usually it is easier to send package questions directly to the package
maintainer, because they may not interest the whole list.
I'm very new to R (which is excellent), so apologies if this has already
been raised. In the spdep package, I'm
On 11/27/03 17:04, [EMAIL PROTECTED] wrote:
Hello,
I'm looking for some guidance with the following problem:
I've 2 samples A (111 items) and B (10 items) drawn from the same unknown
population. Witihn A I find 9 positives and in B 0 positives. I'd like to
know if the 2 samples A and B are
Hello,
I'm looking for some guidance with the following problem:
I've 2 samples A (111 items) and B (10 items) drawn from the same unknown
population. Witihn A I find 9 positives and in B 0 positives. I'd like to
know if the 2 samples A and B are different, ie is there a way to find out
Hi, Torsten:
Thanks for the reference to library(exactRankTests). That seems
like a reasonable alternative to prop.test with small samples.
However, aren't exact tests and the related bootstrap
methodology what Deming called enumerative techniques, more relating
to describing a
Dear R experts,
I am trying to use the R MASS library fitdistr() to fit the following
list:
k21stsList-c(0.76697,0.57642,0.75938,0.82616,0.93706,0.77377,0.58923,0.37157,0.60796,1.00070,0.97529,0.62858,0.63504,0.68697,0.61714,0.75227,1.16390,0.66702,0.83578)
as follows,
library(MASS)
This is primarily an FYI to the Hmisc author, though any brilliant
suggestions from him or anyone else are always welcome. Re this problem
reported earlier in this thread:
getting an error from Hmisc when trying
dvips(latex(describe(mtcars)),file=/kellytest/kelly.ps)
that says
Error in
On Thu, 27 Nov 2003, Oscar Linares wrote:
Dear R experts,
I am trying to use the R MASS library fitdistr() to fit the following
list:
Well, that is not a list!
Its not so much that I wasn't getting the difference between fixed and
random effects. Although, I do like the way you put the comment below.
For my purposes subject is a random effect. It was more on correct
notation in lme with repeated measures designs (my a and b are repeated
while the
Hello,
i'm trying to translate following tcltk source code, which I found in
newsgroup comp.lang.tcl, written by Tom Wilkason, into R Code.
proc scrolled_Canvas {base} {
frame $base.fm -borderwidth 2 -relief sunken
canvas $base.fm.cv -yscrollcommand $base.fm.cv_vertscrollbar set
Thomas Stabla [EMAIL PROTECTED] writes:
I have successfully translated the code until the line
$base.fm.cv create window 0 0 -anchor nw -window $hull -width 10 -height 500 -tag
window
which i don't fully understand because i started with tcltk just this
week.
I tried to
On 27 Nov 2003, Peter Dalgaard wrote:
Thomas Stabla [EMAIL PROTECTED] writes:
I have successfully translated the code until the line
$base.fm.cv create window 0 0 -anchor nw -window $hull -width 10 -height 500
-tag window
which i don't fully understand because i started with
Hi,
I'm trying to debug a function I wrote to calculate the cindex for a
hierarchical tree.
For this it is useful to compare my calculations with those in output from
the clustindex function, in the cclust library.
There's no way, however, to have the cindex value for a given output of the
cclust
On Thu, 27 Nov 2003 10:04:51 -0800
David Kelly [EMAIL PROTECTED] wrote:
This is primarily an FYI to the Hmisc author, though any brilliant
suggestions from him or anyone else are always welcome. Re this problem
reported earlier in this thread:
getting an error from Hmisc when trying
Antonia Drugica [EMAIL PROTECTED] writes:
Does anybody know if R is FDA or ICH (or EMEA...)
compliant? AFAIK S-Plus
is but that means nothing...
As Thomas pointed out, that does mean nothing -- there was a group of
folks discussing what might be done to help, earlier this year, but
Frank Harrell wrote:
Did you make the changes I suggested (surrounding two items by
dQuote())?
Have you tried Linux?
No, I didn't make those changes because I've just been working with a
binary distribution. I may go ahead and pull down sources and try; I was
trying to avoid
On Thu, Nov 27, 2003 at 04:21:04PM -0800, David Kelly wrote:
Frank Harrell wrote:
Did you make the changes I suggested (surrounding two items by
dQuote())?
Have you tried Linux?
No, I didn't make those changes because I've just been working with a
binary distribution. I
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