Dear all,
I a read with great interest the e-mails related to Arnav Sheth about memory
limitation when computing a distance matrix. I suspect
that I will also meet some memory limitation using GeoR. I am currently running GeoR
on a geodata object including 2686 geographical
coordinates.
krige.c
Hi,
I have written a little C++ program, which uses a third party library
called ANN (approximate nearest neighbours)
#include "/home/sekemp/ann_0.2/include/ANN/ANN.h"
I have tried R CMD SHLIB ann.h myProgram.cc, although this compiles when
I load it into R I get the following message..
d
Usually, with that many observations, you use
kriging in a local neighbourhood, i.e. use only the
n nearest observations in a kriging system. If n is
pretty large, this is practically equivalent to kriging
with a global neighbourhood.
There are several other R packages that provide kriging,
some of
> "AndyL" == Liaw, Andy <[EMAIL PROTECTED]>
> on Tue, 17 Feb 2004 13:03:36 -0500 writes:
AndyL> Just do
AndyL> system.time <- sys.time
AndyL> and you're good to go in S-PLUS (at least in 6.x).
yes. This is yet another instance of S-Plus following R behind
and doing it i
Hello,
We're creating a directory focused on web site credibility. We included:
http://www.r-project.org/ in the Machine Learning section of the All.info
directory.
Descriptive information provided by you and our editors helps our users
choose sites. Our editors have already selected starter key
Hello all!
I want to estimate parameters in a MIMIC model. I have one latent
variable (ksi), four reflexive indicators (y1, y2, y3 and y4) and four
formative indicators (x1, x2, x3, x4). Is there a way to do it in R? I
know there is the SEM library, but it seems not to be possible to
spe
A minor variant is to use "cat" for the initial headers:
DF <- data.frame(a=1:2, b=c("a","B"))
cat("header1\nheader2\n", file="filename.csv")
cat("header3\n", file="filename.csv", append=TRUE)
write.table(DF, file="filename.csv", append=TRUE)
In S-Plus 6.2 and R 1.8.2, this produces the
I am new to R enviorns & greatly recommend the Venables Ripley "Modern Applied stats
with S".
I am interested in a sampling say 5 day continuous windows of stock returns from a
population and not applying a function to it. Is this avaiable in the 'boot' or the
'sample' function, and if it is,
Hi everyone,
I am using the package cmprsk in R to estimate the cumulative incidence
function and its variance. In the manual it is mentioned that the variance
is calculated based on Dr. Aalen's paper (1978, Nonparametric estimation of
partial transition probabilities in multiple decrement models)
Hallo!
Trying to configure Xemacs to work with .snw files on windows 2000. Tried to do it
how it is described in the FAQ for Sweaves.
When starting xemacs with and Snw file
*ESS* buffer contains hundrets of lines and the few last ones.
(ess-loop-timeout . 50) (inferior-ess-primary-prompt
Samuel Kemp wrote:
Hi,
I have written a little C++ program, which uses a third party library
called ANN (approximate nearest neighbours)
#include "/home/sekemp/ann_0.2/include/ANN/ANN.h"
I have tried R CMD SHLIB ann.h myProgram.cc, although this compiles when
I load it into R I get the fo
Marc Schwartz <[EMAIL PROTECTED]> writes:
> For those wishing to stay abreast of such issues, this new paper may be
> of interest. It puts the open source efforts of the Gnumeric team
> (http://www.gnome.org/projects/gnumeric/) in a very favorable light.
Thanks.
For those using gnumeric to mun
Dear Marcos,
I don't see why you can't specify a MIMIC model using sem(), though you
might have to supply your own start values. When I have a chance, but
possibly not today, I'll check.
Regards,
John
John Fox
Department of Sociology
McMaster University
Hamilto
On Thursday 26 February 2004 10:13, David Thibault wrote:
> Hello all,
>
> I have a situation where I'd like to plot points from multiple groups of
> data in one plot. I'd like each group's points to be colored a
> different color. I've seen people comment on how you can alternate
> colors by pro
Ko-Kang Kevin Wang wrote:
Hi,
Suppose I have a categorical variable called STREET, and I have 30
levels for it (i.e. 30 different streets). I want to find all those
streets with only 15 observations or below then collapse them into a
level called OTHER. Is there a quick way, other than using a
On Thu, Feb 26, 2004 at 07:48:40AM -0800, Thomas Lumley wrote:
> On Thu, 26 Feb 2004, Pintilie, Melania wrote:
>
> >
> > Hi everyone,
> > I am using the package cmprsk in R to estimate the cumulative incidence
> > function and its variance. In the manual it is mentioned that the variance
> > is ca
> On Thu, 26 Feb 2004 10:08:36 -0500,
> Liaw, Andy (LA) wrote:
>> From: Spencer Graves [mailto:[EMAIL PROTECTED]
>>
>> Martin says, "This is another instance of S-Plus following R
>> behind and doing it incompatibly [with a reason?] ... ."
>>
>> This is one example of a maj
> From: Spencer Graves [mailto:[EMAIL PROTECTED]
>
> Martin says, "This is another instance of S-Plus following R
> behind and doing it incompatibly [with a reason?] ... ."
>
> This is one example of a major issue in "how to wage and win a
> standards war", discussed by Shapiro and
On Thu, 2004-02-26 at 12:35, Christian Hennig wrote:
> Hi,
>
> usually the term MDS is used for methods which operate only on
> dissimilarity matrices. A similarity matrix s can be easily transformed
> into a dissimilarity matrix d by taking d <- max(s)-s, which could be
> considered as kind of a
Dear All,
I am in the somewhat unfortunate position of having to reproduce the
results previously obtained from (non-metric?) MDS on a "kinship" matrix
using Statistica. A kinship matrix measures affinity between groups, and
has its maximum values on the diagonal.
Apparently, starting with a nxn
Hi, Andy: That's great. I hope it stays that way. Spencer Graves
Liaw, Andy wrote:
From: Spencer Graves [mailto:[EMAIL PROTECTED]
Martin says, "This is another instance of S-Plus following R
behind and doing it incompatibly [with a reason?] ... ."
This is one example of a major i
Dear Chuck,
Thanks for saving me the trouble of checking this out. When I have a chance,
I'll take a look at what's going on with the RMSEA confidence interval.
Though it's been awhile, I recall checking this against several examples;
obviously something is wrong here.
Thanks again,
John
Kevin,
something like
table(STREET)
STREET <- as.character(STREET)
STREET[as.numeric(factor(STREET)) %in% which(table(STREET) < 15)] <- "Other"
STREET <- factor(STREET)
table(STREET)
Andrew
On Thursday 26 February 2004 15:25, Ko-Kang Kevin Wang wrote:
> Hi,
>
> Suppose I have a categorica
Hello,
outer() is great for avoiding things like:
for (val1 in val1s) {
for (val2 in val2s)) {
x[i,j] <- somefunction(val1, val2)
}
}
The same can be obtained with:
outer(val1s, val2s, somefunction)
But what if there are three (or more) sets of values to loop over? Any
way of avoiding
I would like to request help with the installation of dse in raqua in mac
os x 10.3. I get the following error message after the messages indicating
that parts were successfully installed.
I would be most grateful for a solution.
-
* Installing *source* p
A few comments:
MDS is normally done on a dissimilarity matrix, not necessarily a distance
matrix (no need for the triangle inequality to be enforced).
Some MDS software will autmatically map similarity matrices to
corresponding dissimilarity matrices if told to do so (but not all by the
same ma
Hi!
Sorry for bothering. Got it working.
Eryk
__
[EMAIL PROTECTED] mailing list
https://www.stat.math.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Hello all.
I am trying to create one figure, divided into 6 graphs/plots each with an inset
sub-figure. I can use to layout command to generate one figure with one inset
sub-figure, but cannot seem to do it for multiple figures on one page.
I've tried a test with the following code:
layout(m
[EMAIL PROTECTED] wrote:
> I appreciate the help I've been given so far. The issue I face is
> that the data I'm working with has 53000 rows, so in calculating
> distance, finding all recids that fall within 2km and summing the
> population, etc. - a) takes too long and b) have no sense of progre
> -Original Message-
> From: Phil Spector [mailto:[EMAIL PROTECTED]
>
> How about something like:
>
> tstreet = table(STREET)
> collapsestreets = names(tstreet[tstreet <= 15])
> STREET[STREET %in% collapsestreets] = 'OTHER'
Thanks a lot!
This is exactly what I want. I had a feeling my
Hello,
Could someone please tell if there is a way to append header info to the top of an
exported dataframe (exported with write.table). I want to append the following, which
are the defininitions for an asciigrid:
ncols 532
nrows 999
xllcorner 510465
yllcorner 4766375
Hello
I want to handle R from a C/C++ project developped with Microsoft Visual
C++.Net
I put a multiproject solution,and one project is a win32 and dedicated for R
manipulation;
When I put in this project the example code from "Written R extension" 4.7
Handling R objects in C p39:
#include
#inc
Hi
It seems, I just miss something. I defined
treshold <- function(pred) {
if (pred < 0.5) pred <- 0 else pred <- 1
return(pred)
}
and want to use apply it on a vector
sapply(mylist[,,3],threshold)
but I get:
Error in match.fun(FUN) : Object "threshold" not found
thanks for help
cheers
c
On Thu, 26 Feb 2004, pascal dessaux wrote:
> Hello
>
> I want to handle R from a C/C++ project developped with Microsoft Visual
> C++.Net
>
> I put a multiproject solution,and one project is a win32 and dedicated for R
> manipulation;
>
> When I put in this project the example code from "Writte
Hi,
usually the term MDS is used for methods which operate only on
dissimilarity matrices. A similarity matrix s can be easily transformed
into a dissimilarity matrix d by taking d <- max(s)-s, which could be
considered as kind of a canonical standard to do this.
It seems like the R-MDS methods g
First question:
dev.control(displayList = "enable") # turn on displaylist
plot(1:3)
myplot <- recordPlot()
plot(1:4)
myplot
# plot(1:3) is back up
Second question:
?identify
?locator
---
Date: Thu, 26 Feb 2004 15:47:14 -0500
From: Rajarshi Guha <[EMAIL PROTECTED]>
To: R <[EMAIL PROTEC
I suppose one way to do it is to write the header info to the file first
(e.g., through connections, or sink(), etc.), then do write.table(...,
append=TRUE).
HTH,
Andy
> From: femke
>
> Hello,
>
> Could someone please tell if there is a way to append header
> info to the top of an exported dat
Here's my shot at it. The gouter function can be enhanced further (e.g., as
outer() does with dimnames), but I think the basic functionality is there.
You can basically pass in any number of vectors you want, but you need to
wrap them in a single list. outer() allows arrays, but gouter() below wi
Hi,
Does anyone know how to compile C++ code that uses 3rd party C++
libraries, so that the .so file can be used in R?
I keep getting errors when using dyn.load which say undefined reference
to KdSpiltRule, which is in my third party library.
Here is the entire code..
// Computes a rapid
wolski wrote:
Hallo!
Trying to configure Xemacs to work with .snw files on windows 2000.
Tried to do it how it is described in the FAQ for Sweaves.
When starting xemacs with and Snw file *ESS* buffer contains hundrets
of lines and the few last ones.
[...]
And no syntax highlighting in the *.Snw
You know...I almost added this to your original post because I thought
you might want to read something back into ArcInfro when you were done!
Look at ?files
The easiest thing to do in R is to keep your header as a text file in
the working directory and then append it to your output file using
'f
Hi,
Suppose I have a categorical variable called STREET, and I have 30
levels for it (i.e. 30 different streets). I want to find all those
streets with only 15 observations or below then collapse them into a
level called OTHER. Is there a quick way, other than using a for()
loop, to do it? Curr
Martin says, "This is another instance of S-Plus following R
behind and doing it incompatibly [with a reason?] ... ."
This is one example of a major issue in "how to wage and win a
standards war", discussed by Shapiro and Varian (1998) Information Rules
(Harvard Business School Press)
On Thu, 2004-02-26 at 17:05, Federico Calboli wrote:
> On Thu, 2004-02-26 at 12:35, Christian Hennig wrote:
> I am happy with the function "dist" in {mva}, and I know there are other
> functions in {cluster}, but it's besides the point. The question that is
> nagging me is: is it justified to do a
Hi,
Thanks for all those information and the most valuable library you have developed.
If somebody is to develop something to write shapefiles from polygon coordinates
within R (most welcome), I don't think that the
attribute file (dbf) will be an important issue. If we have got an output with t
The main limitation of the shapefiles package that I put together is that it
does not create shapefiles from R objects - rather it only writes shapefiles
that have been read into R and manipulated within the constraints of the
existing file structure. By this I mean that for example you can change
On Thu, 2004-02-26 at 11:39, Christoph Lehmann wrote:
> Hi
>
> It seems, I just miss something. I defined
>
> treshold <- function(pred) {
> if (pred < 0.5) pred <- 0 else pred <- 1
> return(pred)
> }
>
> and want to use apply it on a vector
>
> sapply(mylist[,,3],threshold)
>
> but I get:
>
On Thu, 26 Feb 2004, David Thibault wrote:
> Hello all,
>
> I have a situation where I'd like to plot points from multiple groups of
> data in one plot. I'd like each group's points to be colored a different
> color. I've seen people comment on how you can alternate colors by
> providing a range
On Wednesday 25 February 2004 14:00, Jeff Jorgensen wrote:
> Thanks for putting me on the right track. Sorry to be bothersome with
> another follow-up, but the code that calls the panel function (see
> below) doesn't seem to be working. What am I doing wrong?
You are using this wrong. In particu
On Thu, 26 Feb 2004, femke wrote:
> Hello,
>
> Could someone please tell if there is a way to append header info to the
> top of an exported dataframe (exported with write.table). I want to
> append the following, which are the defininitions for an asciigrid:
>
> ncols 532
> nrows
Marcos Sanches wrote:
I want to estimate parameters in a MIMIC model. I have one latent
variable (ksi), four reflexive indicators (y1, y2, y3 and y4) and four
formative indicators (x1, x2, x3, x4). Is there a way to do it in R? I
know there is the SEM library, but it seems not to be possible to
sp
I'm having trouble loading the package SparseM in R 1.8.1, OS = Windows
2000.
Installing appeared to go well; I saw no error messages, html documentation
was installed, and "installed.packages()" lists SparseM among the installed
packages.
When I try to load the library, however, I get the follow
On Thu, 26-Feb-2004 at 04:15PM -0500, femke wrote:
|> Hello,
|>
|> Could someone please tell if there is a way to append header info
|> to the top of an exported dataframe (exported with write.table). I
|> want to append the following, which are the defininitions for an
|> asciigrid:
|> ncols
try:
layout(matrix(c(0,0,0,0,0,1,0,2,0,0,0,0,0,3,0,4), nrow=4,
byrow=TRUE))
plot(rnorm(10), rnorm(10))
plot(rnorm(20), rnorm(20))
plot(rnorm(30), rnorm(30))
plot(rnorm(40), rnorm(40))
> -Original Message-
> From: [EMAIL PROTECTED] [SMTP:[EMAIL PROTE
On Thu, 26 Feb 2004, Pintilie, Melania wrote:
>
> Hi everyone,
> I am using the package cmprsk in R to estimate the cumulative incidence
> function and its variance. In the manual it is mentioned that the variance
> is calculated based on Dr. Aalen's paper (1978, Nonparametric estimation of
> part
On Thu, 26 Feb 2004, Sundar Dorai-Raj wrote:
>
> Samuel Kemp wrote:
>
> > Hi,
> >
> > I have written a little C++ program, which uses a third party library
> > called ANN (approximate nearest neighbours)
> >
> > #include "/home/sekemp/ann_0.2/include/ANN/ANN.h"
> >
> > I have tried R CMD
Hi I had two questions regarding plots:
* Is there are way to save a plot in the form of an object such that it
could be displayed/modified later?
* I've been using Minitab for some work and I found the burshing
capability very handy (it allows me to choose a point on the graph and
displays the d
> treshold <- function(pred) {
> Error in match.fun(FUN) : Object "threshold" not found
^
If this is a direct cut & paste, you have a typo as you've defined the
function as "treshold".
__
[EMAIL PR
> Is everybody writing ArcGIS ASCII rasters recently?
The GIS community is hopelessly tied to ESRI. So many people have
invested their careers in learning Arc that switching to GRASS is an
institutional nightmare. Most of what I do now is outside of Arc! And
certainly outside of their almost usele
That should be `threshold', not `treshold'. Is that the problem?
In any case, why not just use ifelse(); e.g., ifelse(mylist[,,3] < .5, 0,
1)? Or even just round(mylist[,,3])?
Andy
> From: Christoph Lehmann
>
>
> Hi
>
> It seems, I just miss something. I defined
>
> treshold <- function(
Dear R-Community,
I would like to compile R on VMS. Is there anybody out there who has
already tried to do that? I am grateful for any hint. Thanks in advance.
Best regards,
Martin Stauber
--
===
Martin Stauber
Institute for Biomedical Engineering
Swis
Hello all,
I have a situation where I'd like to plot points from multiple groups of
data in one plot. I'd like each group's points to be colored a different
color. I've seen people comment on how you can alternate colors by
providing a range of colors and then it will loop through each color as
On Thursday 26 February 2004 14:47, Rajarshi Guha wrote:
> Hi I had two questions regarding plots:
>
> * Is there are way to save a plot in the form of an object such that it
> could be displayed/modified later?
Depends on what you want to do. Probably not for regular (base) plots. The
grid packa
Hello again,
I think this will help me:
http://www.math.montana.edu/Rweb/Rhelp/points.html
I'll email again if it doesn't.
Dave
-Original Message-
From: David Thibault
Sent: Thursday, February 26, 2004 11:13 AM
To: [EMAIL PROTECTED]
Subject: Help with multicolored points in one plot
H
Thanks Chuck and John,
I guess the problem is that I was specifying the error terms in the
'ram' matrix. I am not familiarized with this type of model
specification as I am used to work with AMOS. Now I think it will work!
Thanks very much!
Marcos
-Mensagem original-
De: Chuck Clela
Patrick Giraudoux wrote:
Thanks a lot for the hints. I will try. Actually I was focusing (in a first stage) on
simple segments (small mammal traplines...).
I turned the problem out writing some lines to export the coordinates into a "simple"
GRASS ascii file, imported it into GRASS as
vector fil
On Thu, 26 Feb 2004, Deepayan Sarkar wrote:
> On Thursday 26 February 2004 14:47, Rajarshi Guha wrote:
> > Hi I had two questions regarding plots:
> >
> > * Is there are way to save a plot in the form of an object such that it
> > could be displayed/modified later?
>
> Depends on what you want to
[EMAIL PROTECTED] wrote:
I'm having trouble loading the package SparseM in R 1.8.1, OS = Windows
2000.
Installing appeared to go well; I saw no error messages, html documentation
was installed, and "installed.packages()" lists SparseM among the installed
packages.
When I try to load the library, h
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