Dear all,
I am considering a problem related to density regression. After we got the
estimation of probability density function f(x), how can we estimate the
mode of that population?
Does the sm package support mode estimation? If not, is there any other
function in R can estimate the mode
Suzanne E. Blatt wrote:
Hello.
I think this is a simple problem. I have R running a program which generates variables that it 'remembers'. The trouble is that I've modified the file that it's generating these variables from but doesn't seem to realize that. When I type 'trees' - I get the
On Thu, 29 Jan 2004, Yun-Fang Juan wrote:
Here is the exact error I got
--
Read 73 items
Error: cannot allocate vector of size 1953 Kb
Execution halted
---
I am running R on Freebsd 4.3
with double CPU and 2 GB memory
Is that sufficient?
Clearly
Muchas gacias por su mensaje e interés en Vivendi Universal Games. Estamos trabajando
lo más rápido posible en una solución a su pregunta.
Gracias por su atención,
Su equipo de soporte técnico
Vivendi Universal Games.
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This is a summary and extension of the thread
GLMM (lme4) vs. glmmPQL output
http://maths.newcastle.edu.au/~rking/R/help/04/01/0180.html
In the new revision (#Version: 0.4-7) of lme4 the standard
errors are close to those of the 4 other methods. Thanks to Douglas Bates,
Saikat DebRoy for the
Marcelo Luiz de Laia wrote:
I have a very simple problem. I have several files in a same
directory. I would like to send for an object only the files
that finish in .sens.. I execute the command below,
files - dir(pattern=*.sens)
That's not even a valid regular expression in most
On Fri, Jan 30, 2004 at 12:46:44PM +0100, Peter J. Acklam wrote:
...cut...
Stefano Calza [EMAIL PROTECTED] wrote:
dir(pattern=\\.sens+$)
That will find files ending with .sens, .senss, .sensss,
etc.
To find files ending with .sens., the regex is
dir(pattern = \\.sens\\.$)
Hi all,
I'd like to plot a set of data (x,y,z) as 3D-cloud, and add several line
plots to the same 3D graph:
Two questions:
1) How do I connect points to get a line?
cloud(z~x*y,data=d,zlim=c(0,1))# works
cloud(z~x*predict(l),data=d,zlim=c(0,1),type=l) # type=l doesn't
Warning
On 29 Jan 2004 at 20:04, Robert Gentleman wrote:
There are some efficiency issues that prevent constant checking (at
least at the present time). There are also some other issues that
need to be adequately addressed too. For example, suppose I had an
object with two slots
a - a
On Fri, 30 Jan 2004, Peter J. Acklam wrote:
Marcelo Luiz de Laia wrote:
I have a very simple problem. I have several files in a same
directory. I would like to send for an object only the files
that finish in .sens.. I execute the command below,
files - dir(pattern=*.sens)
That's
Prof Brian Ripley [EMAIL PROTECTED] wrote:
Peter J. Acklam wrote:
Marcelo Luiz de Laia wrote:
files - dir(pattern=*.sens)
That's not even a valid regular expression in most applications,
but dir does allow it, for some reason. Anyway, I think you
It is a valid regex in GNU's
Hello, Yun-Fan:
Prof. Ripley's comments will get you started. Part of the key is
finding informative ways to subset and summarize the data so you don't
try to read it all into R at once. You can read segments using
arguments skip and nrows in read.table. You can then analyze a
Hi, Suzanne:
R makes a copy of the file and does not operate on the original
file. If you want R to see and process the changes, you must reread the
file and rerun the script to recompute whatever you want.
hope this helps.
spencer graves
Uwe Ligges wrote:
Suzanne E. Blatt
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You can find some Splus code on Prof. Minnotte's web page:
http://math.usu.edu/~minnotte/research/pubs.html. You can try and see if
those can be use directly in R. If not, porting may not be too hard.
Prof. Marron's `SiZer' might also be of interest, but I only know of the
Matlab code that are
Hi,
I want to insert a small figure into a bigger plot. I saw people are doing
this all the time, but I just could not figure out how to do it in R.
Thanks for your help!
Jinfeng Zhang
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Hi everyone,
I want to create my own distance measure, other than 'euclidean' or
'manhatan', to use in cluster pckgs. To do this I think that I need to
change dist(), in mva pckg, or daisy(), in cluster pckg. (or is there a
cleaver way ?)
But this functions are in fact things like: .Fortran(
Your question has by now been answered but I thought
I would add that if you want to do it via file globbing on Windows
rather than regular expressions then this function would help:
list.files.glob - function( spec ) {
# returns list of files or NULL if none: spec uses globbing and can
#
Just to expand on an earlier suggestion:
I have some data sets which change on a daily bases. So far I have
imported these sets into R, done all my evaluations resulting in a
couple of plots, charts and tables of numbers which I copypasted via
clipboard into Powerpoint.
The
The simplest way, if you have a function that returns the distance matrix,
is to use as.dist(). E.g.,
myDist - function(...) {
## compute distance matrix dmat.
...
return(as.dist(dmat))
}
I believe most clustering algorithms in R will accept dist objects.
If that doesn't do it, you
Thanks to Prof Ripley, Arne, Andy Bill for unambiguous suggestions!
Linux box is on order.
I'll take notes on our experience post a follow-up
in a few weeks. May be useful to other folks stuck in the Windows world.
-Jim
At 06:24 AM 1/29/2004, Pikounis, Bill wrote:
Jim,
I would really like to
Gabor == Gabor Grothendieck [EMAIL PROTECTED]
on Fri, 30 Jan 2004 08:56:59 -0500 (EST) writes:
Gabor Your question has by now been answered but I thought
Gabor I would add that if you want to do it via file globbing on Windows
Gabor rather than regular expressions then this
Dear R experts
This is a general question:
Does R have functions for nonlinear robust regression,
analogous to e.g. LTS?
Searching google I have found
1, an abstract to generalize LTS for nonlinear regression
models, see: http://smealsearch.psu.edu/1509.html
2, an AD-model builder, see:
Pascal -
Getting away from Trellis graphics, you might consider using
persp() with regular graphics. Look at example # 2 under
help(persp).
- tom blackwell - u michigan medical school - ann arbor -
On Fri, 30 Jan 2004, Deepayan Sarkar wrote:
On Friday 30 January 2004 06:13, Pascal A.
Pleaase see the comments below.
Here is the exact error I got
--
Read 73 items
Error: cannot allocate vector of size 1953 Kb
Execution halted
---
I am running R on Freebsd 4.3
with double CPU and 2 GB memory
Is that sufficient?
Clearly
It was never the intention that validity checking happen automatically
on _every_ assignment of an object from the class--since those
assignments take place frequently during evaluation of functions, the
overhead would be unacceptable. And as Robert points out, one needs to
postpone validity
Can someone point me to the appropriate functions for
fitting multiple statistical models that are coupled
to each other.
The data are measurements of salinity s and temperature t
at stations id and pressures at p as well as surface elevations h
at stations id. The problem is, for any new
Greetings,
This seems too rudimentary to ask but for the life of me I cannot locate a readily
easy method to compute the univariate mode. I know mode is not correct and table
provides a reasonable count but I figured there would be an easy way to extract the
value from the table after I do
Due to the very heavy volume of e-mail requests for information, we can no
longer respond to individual requests for information.
Instructions for applying to the Graduate Group in Computer Science can be
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Is there a function like is.there such that
is.there ( a ) returns TRUE is object 'a' is in the current environment and
FALSE otherwise?
exists()
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PLEASE do
try the function exists()
On Fri, 30 Jan 2004, Francisco J Molina wrote:
Is there a function like is.there such that
is.there ( a ) returns TRUE is object 'a' is in the current environment and
FALSE otherwise?
Thank you.
Francisco J. Molina
Have you considered exists or missing?
hope this helps. spencer graves
Francisco J Molina wrote:
Is there a function like is.there such that
is.there ( a ) returns TRUE is object 'a' is in the current environment and
FALSE otherwise?
Thank you.
Francisco J. Molina
Have you considered sink?
hope this helps.
spencer graves
Christian Landry wrote:
Hi,
I would like to know what is the function in R that allows exporting
results of an operation directly to a file as the analysis is running.
I am performing an analysis on a large matrix and
On Fri, 2004-01-30 at 15:04, Paul Johnson wrote:
With R 1.8.1 running in Fedora Core 1 Linux, I am having some trouble
recoding and ploting some factor variables.
First, can I give you some example data?
Here is a column of names for age groups:
agegroups - c( 15-19, 20-24,
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