Displaying 20 results from an estimated 600 matches similar to: "NAs in optim"
2004 Sep 22
5
block statistics with POSIX classes
I have a monthly price index series x, the related return series y = diff(log(x)) and a POSIXlt date-time variable dp. I would like to apply annual blocks to compute for example annual block maxima and mean of y.
When studying the POSIX classes, in the first stage of the learning curve, I computed the maximum drawdown of x:
> mdd <- maxdrawdown(x)
> max.dd <- mdd$maxdrawdown
> from
1998 Oct 07
2
R-beta: R0.62.3 installation on RedHat 5.0
I have R-0.62.3 and RedHat 5.0 with fort77.
At the office R is running but when I install a package, eg. 'akima'
I get a message
make: f77: Command not found
'R INSTALL library' does not accept fort77, but R installation checks
f77/g77/fort77. Is there an easy way to edit some file and replace
f77/g77 with fort77?
At home I have the same R and Linux versions, but when
2009 Jul 04
2
Shading the area between lines
Hi,
I have a graph with seven parallel horizontal lines. Is it possible to
shade the area between two adjacent lines?
Thank you in advance,
Hannu
2006 Mar 23
1
R 2.2.1: install packages
Hi,
when using a laptop and trying to install packages for R for Windows 2.2.1 I
get the following error
> utils:::menuInstallPkgs()
--- Please select a CRAN mirror for use in this session ---
Warning: unable to access index for repository
http://cran.dk.r-project.org/bin/windows/contrib/2.2
Warning: unable to access index for repository
2010 Nov 10
4
Installing R and an editor on a USB drive
Hi,
I have adviced my students to install R and an editor on a USB drive for
working in the computer class. With R everything works fine following these
instructions: http://personal.bgsu.edu/~mrizzo/Rmisc/usbR.htm.
But several editors (e.g., Tinn-R and WinEdt) require administrator rights.
I have found out that Emacs (Vincent Goulet's Emacs for Windows Modified
2004 Sep 23
3
R glm
Hello:
would you please help me with the following glm question?
for the R function glm, what I understand is: once you specify the
"family", then the link function is fixed.
My question is: is it possible I use, for example, "log" link function,
but the estimation approach for the guassian family?
Thanks,
Shuangge Ma, Ph.D.
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*
2000 Mar 17
4
lag (PR#491)
Full_Name: Hannu Kahra
Version: 1.0.0
OS: Windows
Submission from: (NULL) (153.1.50.127)
x1 <- lag(x, k=1) returns the original series x. The time series is not
shiftet at all. Only the time is shiftet: for x1 new start = old start -1
and new end = old end -1. When I run, e.g. lm(x~x1) the result is not what
I expect. Both x and x1 are time series. Is this a bug or am I forgetting
something?
2004 Aug 09
4
linear constraint optim with bounds/reparametrization
Hello All,
I would like to optimize a (log-)likelihood function subject to a number of
linear constraints between parameters. These constraints are equality
constraints of the form A%*%theta=c, ie (1,1) %*% 0.8,0.2)^t = 1 meaning
that these parameters should sum to one. Moreover, there are bounds on the
individual parameters, in most cases that I am considering parameters are
bound between zero
2010 Nov 11
1
Tinn-R_2.3.6.0
Hi,
I just found out that Tinn-R_2.3.6.0 is now available on
http://sourceforge.net/projects/tinn-r/.
When configuring Tinn-R: R > Configure > Permanent (Rprofile.site) I get
error
C:\Program Files\R\R-2.12.0\bin\etc\RProfile.site
The above file was not found.
Please try to repeat the procedure!
The correct path for RProfile.site is
C:\Program Files\R\R-2.12.0\etc\Rprofile.site
I was
2004 Nov 18
1
gibbs sampling for mixture of normals
hi
i'm looking for a gibbs sampling algorithm for R for the case of mixture of K
normals, and in particular for the case of bivariate normals.
i'd be grateful if anyone could send its own R-routine, at least for the
univariate case.
thank you in advance
matteo
2012 Nov 12
3
Unable to lauch php-script to truncate database
Dear All,
we have some Nubuilder databases on a Centos6.3 server:
[root at caw-server2 db]# ls /var/www/html/nubuilder/db
reg_begeleidingsteam reg_jww_archief reg_personeel reg_straathoekwerk
reg_bib reg_jww_dossiers reg_resident reg_vrijwilligers
reg_drughulp reg_jww_dvd reg_signaleren
reg_jac_activiteit reg_onthaal reg_sollicitatie
in each
2007 Nov 14
2
rsync problem
I have a simple script that sends one file to two locations on the
same destination server. Here's the code:
DEST="remotehost"
SRC="/home/boss/application.conf"
DST1="/home/user1/application.conf"
DST2="/home/user2/application.conf"
RSYNC1=`rsync -caW -e ssh $SRC $DEST:$DST1`
RSYNC2=`rsync -caW -e ssh $SRC $DEST:$DST2`
This runs every 5 minutes. What
2004 Sep 21
4
unable to install dse package
Error in file(file, "r") : unable to open connection
In addition: Warning message:
cannot open file 'a:/project.txt'
please help
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2004 Aug 04
2
fitting distributions
Hello,
I also try to fit a skewed distribution (like skewed student t) to data
points. Do you have an idee howto do this???
thank you
fabrice dusonchet
***********************************************************************************
This email and any files transmitted with it are confidentia...{{dropped}}
2004 Sep 15
6
Bessel function
Dear all
Currently, I'm implementing the generalized hyperbolic distribution into
Splus. Unfortunately the Bessel function is not implemented in Splus. In
R the Bessel function does exist but it is an internal function and I'm
not able to look at the code.
Is there any possibility to see the code of the Bessel function in R or
does anybody has an implementation of the Bessel function in
2013 Nov 25
2
ltsp & Selinux
Hello All,
I set up ltsp regulary, on Centos6 machines.
This morning I have a Selinux problem that usualy does not occur:
after setting everything up, the thinclients boot, but nobody can login.
It only works after the command :
# echo 0 > /selinux/enforce
I tried this semanage command:
# semanage fcontext -a -t bin_t /usr/bin/xauth
but it makes no difference.
The message I'm now
2004 Dec 02
0
A somewhat off the line question to a log normal distribution
Sigfried,
I am not a statistician, but I have learned that according to the Central Limit Theorem (CLT) sums of random variables, regardless of their form, will tend to be normally distributed. CLT does not require the variables in the sum to come from the same underlying distribution.
Ciao,
Hannu Kahra
Progetti Speciali
Monte Paschi Asset Management SGR S.p.A.
Via San Vittore, 37
IT-20123
2005 Jun 28
2
STAR models estimation with R
Hi,
Can you tell me if there are an R package or code for STAR model estimation and test misspecification. If no, how i could do this.
Thanks in advance
Best regards
AJMI Noomen
Phd student
TUNISIA
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2006 Aug 02
1
unable to "require" installed gems
Hi,
I''ve installed sqlite3 (via the instructions at
http://wiki.rubyonrails.org/rails/pages/HowtoUseSQLite), and all went
well
OSX 10.4.7
ruby 1.8.4 (2005-12-24) [powerpc-darwin8.6.0]
and sqlite3.rb is in
/usr/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.1.0/lib
but I can''t <require ''sqlite3''>
caw$ irb
irb(main):001:0> require
2011 Aug 10
2
tweek startup and logon
Dear All,
CentOs 6 is great, but I would like to get back 2 things from 5.6 :
how can I always see the text lines during startup? (so no graphical
screen )
how can I *not *see all the users on the system when loging on? (so that
users also have to remember their username)
thanks for any advise.
James
--
Johan Vermeulen
IT-medewerker
Caw De Kempen
johan.vermeulen at cawdekempen.be