Displaying 20 results from an estimated 2000 matches similar to: "summary.lm"
2004 Apr 02
5
Plot symbols for more than 25 groups
Is there any effective way to get distinct geometric plotting symbols and
colors for plots involving more than 25 groups?
Thanks.
Dr. Marc R. Feldesman
Professor and Chairman Emeritus
Anthropology Department - Portland State University
email: feldesmanm at pdx.edu
email: feldesman at attglobal.net
fax: 503-725-3905
"Don't knock on my door if you don't know my
2001 Nov 16
2
Finite Mixture Analysis
Are there any S-Plus or R libraries/packages that do Finite Mixture
Analysis following the algorithms similar to those implemented in Geoffrey
MacLachlan's EMMIX program?
Thanks.
Dr. Marc R. Feldesman
email: feldesmanm at pdx.edu
email: feldesman at attglobal.net
fax: 503-725-3905
"Don't know where I'm going.
Don't like where I've been.
There may be no exit.
But
2001 Aug 12
2
rpart 3.1.0 bug?
I just updated rpart to the latest version (3.1.0). There are a number of
changes between this and previous versions, and some of the code I've been
using with earlier versions (e.g. 3.0.2) no longer work.
Here is a simple illustration of a problem I'm having with xpred.rpart.
iris.test.rpart<-rpart(iris$Species~., data=iris[,1:4],
parms=list(prior=c(0.5,0.25, 0.25)))
+ )
>
2001 Dec 26
1
ESS 5.1.19 w/Xemacs 21.4.6
Probably wrong group for this, but a quick question. I've just switched
from emacs to Xemacs. In reinstalling ESS 5.1.19 I keep getting the
following error when loading Xemacs:
"Error in init file: Symbol's function definition is void: w32-using-nt"
I've debugged the ess-site.el file, which is where the error originates
from. The line causing the difficulty is:
2001 Aug 03
2
Math symbols in email - not completely OT
What is the generally accepted way to put certain math symbols into plain
text email?
For example, how does one convey the "is exactly equal to", "is
approximately equal to", and "delta" symbols in a standard text-based (e.g.
Courier) font?
Dr. Marc R. Feldesman
email: feldesmanm at pdx.edu
email: feldesman at attglobal.net
fax: 503-725-3905
2001 Sep 13
3
OT: ps -> eps -> MS Word
I've created a bunch of postscript trees (post.rpart), which I subsequently
edit in Adobe Acrobat 4.05 (I need additional labelling that isn't easy to
add with R). After editing the labels and annotations using Acrobat, I
then export the file to Adobe's .eps format so I can insert the picture
into a Microsoft Word 2000 document. The .pdf file distilled from the .ps
file is
2001 Feb 01
3
summary() vs mean()
Forgive what may seem to be a trivial question/problem.
Below is some simple R 1.2.1(Windows) code with output.
> summary(mammals, digits=10)
Name Body.Weight Brain.Weight
Red Fox :1 Min. : 3.0 Min. : 26.0
Pig :1 1st Qu.: 35.5 1st Qu.: 138.5
Man :1 Median : 100.0 Median : 406.0
Kangaroo:1 Mean : 761.2 Mean :1000.0
Jaguar :1 3rd
2000 Aug 26
1
Warning - Naive Question Alert
In my research area, researchers are very stingy about sharing data. In
fact, they are frequently downright secretive about these
morsels. Typically, we get fed a diet of summary statistics and the
assurance that the data are *normal* without any necessary documentation
that they really are.
With that as background and assuming that the data really are normal, is
there any way in R (or any
2003 Jun 26
3
Compiling R for OS X 10.2.6 (Darwin 6.6)
Our lab just picked up a G4 Powerbook (1 GHz, 1GB RAM, OS X 10.2.6). None
of us have any experience with Macs but for various reasons we need to have
one around for development.
In any case, we've installed fink, all the Apple Developer Tools and the
Dec2002updater to gcc 3.3. We're now trying to compile R 1.7.1 without too
much success. First we had to get g77, which turned out to
2002 Apr 07
2
save.image() error
Running 1.4.1 (Windows) under Windows XP Pro. Have had no difficulty for
several weeks since moving to the new OS. Today, while checking the
behavior of my mouse, I loaded Rgui as usual. I then immediately tried to
exit the program. Upon exiting, I got the following message:
Error in save.image(name) : image could not be renamed and is left in .RDataTmp
I can move the .RData file to any
2001 Sep 13
0
ps/eps/Word
Thanks to all who offered advice on how to solve a loss of resolution
problem involving ps from R, ps -> eps from Acrobat, and Word.
It appears that this problem will need to be resolved inside R. If I try
to add anything additional (more text, clipart embellishments) to a ps/eps
file (using, say, Adobe Acrobat, PaintShop Pro, Powerpoint, or Adobe
Illustrator), it gets placed as a
2002 Sep 15
0
Congrats to Brian, Bill, and Peter
Congratulations to Bill Venables and Brian Ripley for their latest "tour de
force" - MASS 4, which just arrived in my mailbox last week. As always,
the book contains new pearls of wisdom to improve my statistical and
programming skills.
Kudos also to Peter Dalgaard for his "Introduction to Statistics with
R". It is a delightful volume that I can recommend to all those
2002 Sep 14
2
OT: Compiling EMMIX
Sorry for the off-topic post, but there is such a wealth of knowledge here
that I thought someone might have suggestions.
Geoff MacLachlan and David Peel have a program - EMMIX - available for
mixture modelling. It is only available as FORTRAN source code and is
"downloadable" from Geoff's site. The code is reputed to run on Unix
machines and is compilable according to
2003 Mar 15
3
round() seems inconsistent when rounding 5s
It may be my lack of unerstanding, but round() seems to me to give
inconsistent results when rounding 5s as in the following examples?
> round(1.45, 1)
[1] 1.4 # OK
> round(2.45, 1)
[1] 2.5 # shouldn't this be 2.4?
> round(1.05, 1)
[1] 1.1 # 1.0 ?
and signif():
> signif(2.445, 3)
[1] 2.44 # OK
> signif(3.445, 3)
[1]
2002 Nov 11
2
Bootstrp help
Hey,
I have a set of data and want to use Bootstrap
method to estimate some pararameters.
So does anybody know if there are such
functions in R to achieve this?
Thanks for your points.
Fred
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r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or
2002 Apr 13
1
save.image() error reappears
A week or so ago, I reported a problem on my new Windows XP box getting R
1.4.1 and R 1.5.0 (development from BDR's site) to save the .RData file
upon program exit. Specifically, either clicking on the "X" in the GUI or
invoking q() from the command line produced the following error:
Error in save.image(name) : image could not be renamed and is left in
.RDataTmp1
After some
2001 Dec 07
2
Help for Linear Discriminant Analysis
Dear colleague,
I'd like to compute linear discriminant analysis, using R. In the book Modern applied statistic with Splus (Venables & Ripley, p. 396), lda function is used. Could you tell me where I can find this function? At what site, can I download this library ?
Thank for your help.
Best Regards
Sovan
----------------------------------------------------------------
Prof. Sovan
2000 Mar 08
1
Coercing character to factor
I just downloaded version 1.0.0 and several binary libraries (VR, rpart,
norm, stataread) - WinNT version. I then converted a file from Stata 6.0
to R format by using the stataread library. The file converts perfectly
and I was able to use the VR function lda on the dataframe without
difficulty. I then tried to use the same dataframe with RPART. The model
statement:
2002 Apr 13
1
save.image() issue resolved - I hope
I've been combing through logs I keep of all my activities. I've found a
possible correlation between the save.image() problem I'm having and one
particular event.
My system has a rewriteable DVD drive. I keep a 4.7 GB DVD/RW disk in the
E: drive and have a system scheduler synchronize the contents of the g:
drive with the e: drive every Friday night. Interestingly, both times
2001 Jul 12
2
rpart puzzle
I've been using the package rpart with R 1.3.0 for Windows to produce
simple classification trees for some measurement data from paleontological
specimens. Both the rpart documentation and the output confirm that the
program produces splits on continuous data that leave "holes" in the
data. It is probably of little practical importance, but is there a reason
why the binary