Displaying 20 results from an estimated 7000 matches similar to: "Kernel smoothing."
2003 Dec 18
2
diagnostic information ....
Paul E. Johnson wrote:
> I handed out some results from glm() and the students ask "how many
> observations were dropped due to missing values"?
>
> How would I know?
>
> In other stat programs, the results will typically include N and
> the number dropped because of missings. Without going back to R and
> fiddling about to find the total number of rows in
2003 Dec 10
2
OT: BibTex year-only citation in text?
Sorry for the off-topic question, but I know there are some talented
LaTeX users out there. Which bibliography style gives only the year in
text citations (e.g "for further details, see Anderson (1992)" )?
Thanks
Jason
--
Indigo Industrial Controls Ltd.
http://www.indigoindustrial.co.nz
64-21-343-545
jasont at indigoindustrial.co.nz
2001 Nov 02
1
Summary --- testing for existence of file.
Many thanks to those who answered my question about how to test
for the existence of a file: Berwin Turlach, Jari Oksanen, Henrik
Bengtsson, Uwe Ligges, and Joerg Maeder.
The simplest solution is to use the built-in (!!!) function
file.exists() which returns TRUE if the file exists, and FALSE
if it doesn't. Like, duhhhhhh!!! It's exactly what I wanted.
Special thanks to Berwin Turlach
2003 Nov 01
2
Question about the high dimensional density estimation
Hi,
I found that the R package "KernSmooth" can deal with only 1D and 2D data. But now I have a collection of 4-dimensional data (x1,x2,x3,x4) and would like to estimate the "mode" of the underlying density. What can I do about it ?
Thanks a lot.
--
Ying-Chao Hung
Assistant Professor
Graduate Institute of Statistics
National Central University
Chung-Li, Taiwan
TEL:
2003 Oct 21
5
run R under linux
Dear all,
Our department uses the linux system and we are not allowed to submit job
directly. We must make a batch to submit through "qmon".
so, I make a foo.sh file, which only contains one line: nohup R --vanilla <
foo.txt > foo.results
foo is all my codes. It is a simulation of 200 times. I set the seed at the
beginning. It is to estimate the success probability, which is
2003 Dec 21
3
Sweave/LaTeX Problem with EPS PDF
Dear List:
I am unsure if my problem is with Sweave or LaTeX. Anyhow, I am using the MikTeX distribution and TexnicCenter.
I can easily create Sweave files and all goes well until I try to incorporate graphics. I use the same code as found in the examples found in the users manual.
In R, the graphics I want are created as Sweave is creating the .tex file. When I examine the .tex file
2003 Dec 04
4
bug in as.POSIXct ?
I think that there is a bug in the as.POSIXct function on Windows.
Here is what I get on Win2000, Pentium III machine in R 1.8.1.
> dd1 <- ISOdatetime(2003, 10, 26, 0, 59, 59)
> dd2 <- ISOdatetime(2003, 10, 26, 1, 0, 0)
> dd2 - dd1
Time difference of 1.000278 hours
Now, the 26th of October was the day that change to the standard time
occurred, so I suspect that this has
2002 Dec 18
6
Can I build an array of regrssion model?
Hi,
I am trying to use piecewise linear regression to approximate a
nonlinear function. Actually, I don't know how many linear functions I
need, therefore, I want build an array of regression models to automate
the approximation job. Could you please give me any clue?
Attached is ongoing code:
rawData = scan("c:/zyang/mass/data/A01/1.PRN",
what=list(numeric(),numeric()));
len =
2001 Jan 24
5
trouble with netCDF (PR#824)
Having trouble with netCDF since I upgraded to 1.2.1 (did directly
from 1.1.1). Package was recompiled after the upgrade.
Symptoms:
open.netCDF returns cleanly, but read.netCDF causes R to segfault
and dump core. What else do you need me to write to help?
--please do not edit the information below--
Version:
platform = i586-pc-linux-gnu
arch = i586
os = linux-gnu
system = i586, linux-gnu
2003 Oct 28
3
ts vs. POSIX
OK.
What if I have a time series which is collected every Monday, please?
What is the proper way to use the start option within the ts command
in order to indicate that this is Monday data, please?
Thanks again!
Sincerely,
Erin
2002 Apr 29
3
how to trap any warnings from an R function
Within an user function, how are the warnings from an R function be trapped
(such that some proper actions can be taken)? 'last.warning' is returned
only at the top level. Pointers are appreciated.
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2003 Dec 02
3
check WARNING...
I've been developing a package and have been getting the following warning
when running the check command:
* checking S3 generic/method consistency ... WARNING
plot:
function(x, ...)
plot.summaries:
function(trees, sp)
* checking for replacement functions with final arg not named 'value' ... OK
* checking Rd files ... OK
...blah, blah, blah...
* checking examples ... OK
*
2003 Nov 06
4
building r-patch
Hi,
I am building r-patch from the sources (rsync-ed today).
make check produced the following message:
running tests of Internet and socket functions
expect some differences
make[3]: Entering directory `/usr/evahome/vograno/R/tests'
running code in 'internet.R' ... OK
comparing 'internet.Rout' to './internet.Rout.save' ...18c18
< Content type `text/plain;
2003 Oct 01
5
lda source code
I am new to R. Trying to find out how lda() {in MASS R1.8.0 Windows} was
implemented in R. Does anyone know where to find out lda source code ?
Thanks.
Wei
2003 Sep 03
3
help.start( )
Dear R experts,
I installed R-1.7.1 on Linux (Red Hat 9.0) starting from R-1.7.1.tgz without a problem. Then I fired up R and tried things and found that help.start( ) does not work. I downloaded Sun Java j2re1.4.2, installed that and re-installed R-1.7.1 from scratch. I tried help.start( ) again and the browser (Mozilla 1.2.1) crashed.
I read about copying libjavaplugin_oji.so into
2002 Jul 29
1
density estimation on 2-D bounded domain
Dear R experts,
density estimation on a 2 dimensional bounded domain
---------------------------------------------------------------------
I am currently trying to estimate the probability
density (PD) of cancers within the breast using
the sm library with the routine
sm.density
Of course a practical PD must be limited by the curve of the breast
outline.
I don't have a clue after perusing
2004 May 20
2
irregular time series
Background:
OS: Linux Mandrake 9.1
release: R 1.9.0
editor: Xemacs 21.4
frontend: ESS 5.1.23
---------------------------------
Colleagues
I have two time series (upwelling index and water temperature) of evenly
spaced, daily data over 18 months, but the upwelling index series has a gap
of about 2 months right in the middle of it. I want to do the acf, pacf,
ccf, and a cross-spectral analysis
2002 Mar 17
2
using "by" and indicies
I sent this to the list last week, and haven't seen it pop up. Either
I deleted it when it did appear, or possibly it was destroyed as
spam...? If it did appear and I somehow missed it, appologies.
In a nutshell, can the function FUN supplied to by() deduce
what level of factor by() was on when FUN was called? I've
been digging through the functions, and can't see where the
2003 Sep 22
1
Updating a linear model
My google search for Plackett's Algorithm didn't return too much except that
Plackett's algorithm appears to be useful in Control Theory - it is
elaborated as "Plackett's algorithm for on-line recursive least squares
estimation". Sounds something like what I want.
I am looking at developing a user modelling type app (new data points coming
in and wanting to dynamically
2002 Nov 05
3
tsplot function
I understand that the tsplot function is no longer available in the
latest verion. What should I do if I want to plot say the first five
rows of a matrix??
-gyan
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