Displaying 20 results from an estimated 5000 matches similar to: "[despammed] RE: multidimensional function fitting"
2003 Feb 28
0
[despammed] RE: multidimensional function fitting
You can use R objects, such as the return from gam, and the
predict.gam function, from C. See the R extensions manual.
Reid Huntsinger
-----Original Message-----
From: RenE J.V. Bertin [mailto:rjvbertin at despammed.com]
Sent: Thursday, February 27, 2003 3:42 PM
To: Wiener, Matthew
Cc: r-help at stat.math.ethz.ch
Subject: Re: [despammed] RE: [R] multidimensional function fitting
On Thu, 27
2003 Feb 27
2
multidimensional function fitting
Take a look at package mgcv. Hope this helps. --Matt
-----Original Message-----
From: RenE J.V. Bertin [mailto:rjvbertin at despammed.com]
Sent: Thursday, February 27, 2003 1:39 PM
To: r-help at stat.math.ethz.ch
Subject: [R] multidimensional function fitting
Hello,
I have been looking around for how to perform a multidimensional, arbitrary
function fit (in any case non-linear; more below),
2004 Nov 18
4
Re: changing (core) function argument defaults?
>From: Patrick Connolly <p.connolly@hortresearch.co.nz>
>To: "RenE J.V. Bertin" <rjvbertin@hotmail.com>
>Subject: Re: [R] changing (core) function argument defaults?
>Date: Thu, 18 Nov 2004 11:43:10 +1300
>
>On Wed, 20-Oct-2004 at 07:48PM +0200, RenE J.V. Bertin wrote:
>
>|> Hello,
2004 Nov 18
4
Re: changing (core) function argument defaults?
>From: Patrick Connolly <p.connolly@hortresearch.co.nz>
>To: "RenE J.V. Bertin" <rjvbertin@hotmail.com>
>Subject: Re: [R] changing (core) function argument defaults?
>Date: Thu, 18 Nov 2004 11:43:10 +1300
>
>On Wed, 20-Oct-2004 at 07:48PM +0200, RenE J.V. Bertin wrote:
>
>|> Hello,
2005 Nov 11
0
strange classification behaviour
You could use cut. The key calculation would be:
w <- .05; eps <- 1e-5
breakpoints <- seq(min(kk), max(kk), .05)
breakpoints <- floor( (breakpoints + (w/2) + eps) / w) * w
values <- cut(kk, c(breakpoints, Inf), right = FALSE)
values <- ordered(values)
If you don't like the labels produced add lab = breakpoints as a cut arg.
On 11/10/05, RenE J.V. Bertin
2003 Feb 04
0
FW: [despammed] Samba - winXP lookup
> Might not be it...but the '30 second lockup' triggered a memory...
>
> Could this be the 'looking for scheduled tasks' problem?
> Here's a blurb from the
> windows-net-mag site
> (http://www.win2000mag.net/Articles/Index.cfm?ArticleID=24546)
.
Like Windows 2000, XP suffers from a little-documented browse delay. When you browse to a Windows 9x computer
2002 Jun 10
2
Crashing R (PR#1651)
Concerns: R 1.5.0 gui version, Windows (downloaded binary) and Linux
(installed from sources).
# Load the data from the attached file:
kk<-read.table("__filename__", header=1)
# attach the data:
attach(kk)
Snr<-factor(Snr)
# fool around with a call to anova.glm():
anova.glm( aov( nFD~Type+size+Modality+Error(Snr/(Type+size+Modality)) ) )
# Error: object nFD not found
# Well, I
2005 Jun 23
4
contrats hardcoded in aov()?
On 6/23/05, RenE J.V. Bertin <rjvbertin at gmail.com> wrote:
> Hello,
>
> I was just having a look at the aov function source code, and see that when the model used does not have an Error term, Helmert contrasts are imposed:
>
> if (is.null(indError)) {
> ...
> }
> else {
> opcons <- options("contrasts")
>
2006 Oct 09
1
[Mac OS X 10.4] object R_loess_raw not found (reason found)
Well... this may be a red herring after all, but it's an interesting one!
It turns out I have got DYLD_LIBRARY_PATH set. This gets exported to R
(or rather, affects the loader that loads the R process?), and somehow
mixes up the way symbols are exported. Something that applies to
launching R from the command line (/usr/bin/R) AND via LaunchServices
(open -a R). Once I noticed that invoking
2004 Sep 17
1
controlling printing precision in paste()
Rene,
Look at ?format.
Sean
On Sep 17, 2004, at 9:21 AM, RenE J.V. Bertin wrote:
> Hello,
>
> I can't seem to find the way to modify the precision with which
> paste() prints its floating point numbers, more precisely the number
> of decimal digits printed. This is apparently not controlled by
> options( digits= ), and there is no appropriate argument to paste()
>
2002 Feb 08
0
packages for extracting subtrees
Hi. I did write those functions, and sent them (I thought) to one of the R
maintainers to see whether they would be appropriate for inclusion (because
I'd seen some requests on the mailing lists).
However, I'm happy to post them -- I should have thought of it before.
WARNING: I've tested these functions on some data arising in my work and
also on the USArrests data that comes with
2009 Oct 06
0
Kernlab: multidimensional targets in rvm(), ksvm(), gausspr()
Hi there,
I'm trying to do a regression experiment on a multidimensional
dataset where both x and y in the model are multidimensional
vectors.
I'm using R version 2.9.2, updated packages, on a Linux box.
I've tried gausspr(), ksvm() and rvm(), and the models are
computed fine, but I'm always getting the same error message
when I try to use predict():
"Error in
2012 May 15
0
How to apply a function to a multidimensional array, based on its indices
Hello,
Your way is much better than to mess with the dim attribute, like I did.
But,
"If you can create a data.frame or matrix that has the indices"
Actually, it must be a matrix, indices can't be of type list.
A way to avoid loops/apply altogether, and much faster, is the one
creating K3
(K is the result from the op.)
n <- 20
t2 <- system.time({
K2 <-
2006 Jul 17
1
multiplying multidimensional arrays (was: Re: [R] Manipulation involving arrays)
I am moving this to r-devel.
The problem and solution below posted on r-help could have been
a bit slicker if %*% worked with multidimensional arrays multiplying
them so that if the first arg is a multidimensional array it is mulitplied
along the last dimension (and first dimension for the second arg).
Then one could have written:
Tbar <- tarray %*% t(wt) / rep(wti, each = 9)
which is a bit
2005 Nov 03
1
multidimensional integration not over a multidimensionalrectangle
Hi,
anyone knows about any functions in R can get multidimensional integration
not over a multidimensional rectangle (not adapt).
For example, I tried the following function f(x,n)=x^n/n!
phi.fun<-function(x,n)
{ if (n==1) {
x
}else{
integrate(phi.fun, lower=0, upper=x, n=n-1)$value
}
}
I could get f(4,2)=4^2/2!=8, but failed in f(4,3)=4^3/3! Thanks
Best,
Lynette
2002 Oct 13
0
row and column totals in multidimensional tables
Hello!
the function apply() allows to compute the row sum of a multidimensional
table but, when I try to merge the new column with the original table whith
cbind(), the grouping varibles disapear and the new table is bidimensional.
Knows anybody how to add row totals to a multidimensional table?
Thanks in advance
Juan Pablo
_________________________________________________________________
2004 Sep 17
2
lattice: bwplot and panel.lmline()
On Friday 17 September 2004 13:52, RenE J.V. Bertin wrote:
> Hello again,
>
> I am doing regressions (using panel.lmline() (and panel.abline(
> rlm(...))) ) inside a panel method which I pass to bwplot().
>
> What I would like to do is create a boxplot of categorised data
> (binned on the independent variable), and superpose a regression line
> which is calculated using the
2002 Apr 19
4
Multidimensional scaling
A student of mine wants to use R to do some nonmetric multidimensional
scaling. According to the R FAQ, there's a package called pcurve that
computes multidimensional scaling solutions, but I was not able to locate
it the contrib page (I am a Windows user with R version 1.4.1). Can
anyone tell me whether it is possible to do nonmetric multidimensional
scaling with R, and if so, how?
John
2011 Jan 20
2
Using a list as multidimensional indexer
Hello list.
Another 'puzzle' for which I don't have a clean solution.
Say I have a multidimensional object, e.g.:
Mm<-matrix(1:6, nrow=2, dimnames=list(c("a","b"), c("g","h","i")))
And on the other hand I have a list
Ind<-list("b","g")
This holds, for each dimension, an indexer for that dimension.
Now I would
2002 Jul 09
3
portable snprintf implementation
This may be of interest:
http://www.ijs.si/software/snprintf/
It looks like this version may well be more complete and conform the standards than the version that comes with R.
BTW: I am currently patching unix/sys_std.c and modules/gtkconsole.c such that they don't store lines in the history that are identical to the previous line. Is there any interest in posting those patches here?
RenE