Displaying 20 results from an estimated 900 matches similar to: "Surprise when mapping matrix to image"
2007 Jun 06
6
p-value from GEE
Hi to all,
I found in the R-help archive how to calculate the p-value for a gee result:
http://finzi.psych.upenn.edu/R/Rhelp02a/archive/74150.html
but there are two questions (I am afraid they are basic questions ...)
1. why is the result multiplicated with 2
2. how could I decide between lower.tail =TRUE and FALSE:
example:
2007 Nov 14
1
0.9.49 Battlefield 1942 and Patch 1.6.19 help for debugging
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Hi, my first post on the list.
First of all: Thank you.
Battlefield 1942 now installs on wine without the need of any NoCD-Patch/Crack. The first time in the last years i was able to run it.
The only option i had to choose was
2004 Aug 26
5
Surprise when mapping matrix to image
Start with:
> x <- c(1:7,1)
> dim(x) <- c(2,4)
> x
[,1] [,2] [,3] [,4]
[1,] 1 3 5 7
[2,] 2 4 6 1
2 Rows of 4 Columns. Upper-left and lower-right elements of the matrix
are the same.
All to this point makes good sense.
> image(x)
However, this image shows 2 columns of 4 rows. The lower-left and
upper-right elements are the same. This does
2007 Aug 09
1
Memory Experimentation: Rule of Thumb = 10-15 Times the Memory
Hi,
I've been having similar experiences and haven't been able to
substantially improve the efficiency using the guidance in the I/O
Manual.
Could anyone advise on how to improve the following scan()? It is not
based on my real file, please assume that I do need to read in
characters, and can't do any pre-processing of the file, etc.
## Create Sample File
2002 Aug 23
0
codec online test from "that" German IT-Magazin C't
Salve,
till the 28. August midnight the magazin c't has a codec test
between AAC, MP3, WMA and Vorbis Ogg online.
http://www.heise.de/ct/leserbefragung/hoertest/
<p>Short guide for non German speakers:
----------------------------------------------------------------------------
stepp 1
browse to:
http://www.heise.de/ct/leserbefragung/hoertest/
Down on that page is a link with the name
2006 Dec 05
0
question about installation of R 2.4
To whom it may be concernedDear all:
i am a
statistics of Humboldt university in berlin. I need R-2.4 for my data analysis,
but unfortunately, it does not work. The installation
works smoothly, but when I double click on the shortcut or from the start menu,
the error warning jumps out. My computer is in german system and so do the
error information. The following is the error warning and its
1999 Dec 01
0
Security Patches for Slackware 7.0 Available (fwd)
---------- Forwarded message ----------
Date: Tue, 30 Nov 1999 12:14:09 -0800 (PST)
From: David Cantrell <david@slackware.com>
To: slackware-security@slackware.com
Subject: Security Patches for Slackware 7.0 Available
There are several security updates available for Slackware 7.0. We will
always post bug fixes and security fixes to the /patches subdirectory on
the ftp site:
2005 Apr 29
0
Anscombe-Glynn, Bonett-Seier, D'Agostino
Dear useRs,
I was searching CRAN for implementation of kurtosis and skewness tests,
and found that there is some kind of lack on it.
So, I have written three functions:
1. Anscombe-Glynn test for kurtosis
2. Bonett-Seier test based on Geary's kurtosis (which is not widely
known, but I was inspired by original paper describing it, found
coincidentally in Elsevier database)
3.
2011 Oct 25
1
alternative option in skewness and kurtosis tests?
I have a question about the D'Agostino skewness test and the Anscombe-Glynn
kurtosis test.
agostino.test(x, alternative = c("two.sided", "less", "greater"))
anscombe.test(x, alternative = c("two.sided", "less", "greater"))
The option "alternative" in those two functions seems to be the null
hypothesis. In the output, the
2003 Jan 03
0
Digital unterschriebene E-Mail von FreeMail / Digitally signed email from FreeMail
(english version see below)
Sie erhalten in den naechsten Minuten eine digital unterschriebene E-Mail
von einem Freemail-Anwender. Damit Ihr E-Mail-Programm den Ausweis
ueberpruefen kann, muss das "Root-Zertifikat" von WEB.DE installiert sein.
Klicken Sie dazu bitte auf:
http://trust.web.de/root.sql
Auf dieser Web-Seite finden Sie eine genaue Anleitung zur Installation des
Zertifikats
1999 Dec 03
0
Re: Programming ...
Hi,
While looking for holes in the utility script, that Glynn Clements sent, I
have realized that using "~/" may be dangerous. The original script:
On Wed, 1 Dec 1999, Glynn Clements wrote:
[---cut---]
> cp ~/static-rm ~/rm # installing the "rm" binary needs to be
> mv -f ~/rm /tmp/rm # safe against symlink games
> cd /tmp
> chroot /tmp
2008 Mar 05
1
win-pvdrivers: shutdownmon.exe does not start
Hi,
I tried using win-pvdrivers 0.8.4 on German Windows XP Pro SP2. Xen is
3.1, comes with Ubuntu 7.10.
Everything seems to work well except the shutdown monitor.
If I run shutdownmon.exe on the command line, windows gives an error
message stating it could not initialize shutdownmon.exe correctly.
Parameters passed to shutdownmon.exe don''t have any influence on the error.
The original
2007 Jul 16
1
How to write a data.frame into n different csv-files
Hello,
I want to write a data.frame with 10 different entries x (by index y)? into ten different csv-files.
In every output file should be one of the ten numbers of x.
I tried this one, but I can't write into ten different files, like test1.csv to test10.csv:
x <- rnorm(10)
y <- c(1:10)
z <- data.frame(y,x)
n <- nrow(z)
for (i in 1:n) write.csv(z$x[i],
2007 Sep 04
0
ML fit of pareto and lognormal distributions to grouped data
Dear list members,
I have a set of claims data, which are in ranges and the shape of the
distribution is relatively different. I have looked through R help
threads and found out that an ideal way is suggested for the gamma
distribution ML fitting for grouped data.
I just wonder if there is any method that works for lognormal or
pareto distribution?
An example would be:
2006 Aug 15
0
Help with workaround for: Function '`[`' is not in thederivatives table
Earl F. Glynn asks:
> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Earl F. Glynn
> Sent: Tuesday, 15 August 2006 8:44 AM
> To: r-help at stat.math.ethz.ch
> Subject: [R] Help with workaround for: Function '`[`' is not in
thederivatives table
>
> # This works fine:
> > a <- 1
2006 Oct 29
1
glmmPQL in 2.3.1
I have come across the previous communication on this list in September
(copied below) because I had received the same error message.
I understand from Brian Ripley's reply that anova should not be used
with glmmPQL because it is not an adequate method, and that this is now
shown with an error message.
My question is, what method *should* be used? Using summary does not
give me the result
2005 Aug 15
1
Anything like dir.choose (similar to file.choose) in R?
Does R have a dir.choose function?
I can use file.choose like this as a kludge to get something like a
dir.choose, but a real dir.choose would be better:
cat("Select one of files in directory to process:\n")
filename <- gsub("\\\\", "/", file.choose())
basepath <- dirname(filename)
Windows provides a lower-level SHBrowseForFolder function to create such
2006 Aug 14
1
Help with workaround for: Function '`[`' is not in the derivatives table
# This works fine:
> a <- 1
> b <- 2
> c <- 3
> E <- expression(a * exp(b*X) + c)
> X <- c(0.5, 1.0, 2.0)
> eval(E)
[1] 5.718282 10.389056 57.598150
> D(E, "b")
a * (exp(b * X) * X)
> eval(D(E, "b"))
[1] 1.359141 7.389056 109.196300
# But if (a,b,c) are replaced with (A[1], A[2], A[3]), how can I get a
derivative
2006 Nov 08
0
R solaris 64 (etc) build errors
Hello folks,
I found the following message in the web archives from a month or so back
- I've now encountered this same problem while trying to update our local
builds of R (on Solaris) from ~2.2.0 to 2.4.x.
I've tried both the official 2.4.0 source tarball, as well as yesterday's
R-patched source.
I'm doing my builds on a T2000 running Solaris 10, patched up to date as
of a
2008 Feb 06
1
Building R for Windows
I have some C code (using an old Borland compiler) that calls a DLL that
I'd like to get working from Windows and R (so I can read ABF files -- Axon
Binary Files -- directly in R).
I thought a good first approach would be able to build R in Windows, so
that's what I'm trying to do. [I've done test builds of R under Linux
before, and that seemed fairly simple.]
I've