Displaying 20 results from an estimated 4000 matches similar to: "R] Re: Mandelbrot set and C code --"
2003 Oct 02
0
R] Re: Mandelbrot set and C code --
Wizards...
With regards to Mario's Mandelbrot.c programming -- would
some kind wizard show how to compile and run his code on
a Win installation. I'm looking for a simple "cookbook" example in
the same manner that Mario show for Linux.
I have Win2000 on this machine.
REX
--------------- Original Message ---------------------
Date: Wed, 01 Oct 2003 14:09:36 +0100
From: ucgamdo
2002 Dec 10
0
FW: Answers to "Problem with differences between S+ and R in parsing output tables with $"
To R-wizards:
Thank you for your quick an insightful responses. I now have R running
a translated version of S+ code for power calculations for non-normal
data. This is from the Michael Crawley's new book Statistical
Computing--An Introduction to Data Analysis using S-Plus. Peter Dalgaard
corrected me on the issue of the $ operator not being a parser. It sure
looked like an advanced Regex
2010 Sep 24
2
why I could not reproduce the Mandelbrot plot demonstrated on R wiki
I am trying to reproduce the nice looking of Mandelbrot demonstrated by R
wiki page by the following code:
library(caTools) # external package providing write.gif function
jet.colors = colorRampPalette(c("#00007F", "blue", "#007FFF", "cyan",
"#7FFF7F",
"yellow", "#FF7F00",
2005 Oct 04
6
Animation of Mandelbrot Set
Hi,
I was playing with Mandelbrot sets and come up with the following code, I
thought I would share:
library(fields) # for tim.colors
library(caTools) # for write.gif
m = 400 # grid size
C = complex( real=rep(seq(-1.8,0.6, length.out=m), each=m ),
imag=rep(seq(-1.2,1.2, length.out=m), m ) )
C = matrix(C,m,m)
Z = 0
X = array(0, c(m,m,20))
for (k in 1:20) {
Z =
2010 Oct 11
1
plotting Zipf and Zipf-Mandelbrot curves in R
Using R, I plotted a log-log plot of the frequencies in the Brown Corpus
using
plot(sort(file.tfl$f, decreasing=TRUE), xlab="rank", ylab="frequency",
log="x,y")
However, I would also like to add lines showing the curves for a Zipfian
distribution and for Zipf-Mandelbrot.
I have seen these in many articles that used R in creating graphs.
Thank you!
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2003 Oct 20
0
Re: win.metafiles in linux and R
Dear all:
Professor Ripley commented:
> Note that libEMF's help page says
>
> It is also possible now to generate EMF files from PSTOEDIT
> on POSIX
> systems. Therefore, if your graphics code only outputs
> PostScript, you
> can now easily convert it to EMF.
>
> but that is only true on Windows (unfortunately).
>
Actually I have had some luck
2003 Sep 17
3
Fractals in R and having fun! (and more persp and color)
Well, I started playing with fractals in R, and wrote a function to
generate de Mandelbrot set, which might
be of interest to some people
###########################################################################
# Mandelbrot set
###########################################################################
mandelbrot <- function(x = c(-3.0, 1.0), # x coordinates
y =
2002 Dec 09
2
Problem with differences between S+ and R in parsing output tables with $
R-wizards
I have successfully run with S+ a statistical power calculation for
non-normal distributions as presented in M. Crawley?s new book.? When I
tried the newest version of R on the same code, the $ parse statement
doesn't seem to retrieve the appropriate number from a table. Note that
some of the cosmetic differences in the two tables have to be dealt with
by the parser. Any ideas
2003 Jan 11
2
plotting and unplotting lines in R
I would like to plot and unplot a line to a graph using R's line
command. This would allow for sequentially trying different plotted
functions for a visual fit. Is there a way to do this?
Rex
2003 Jan 15
1
Is R really an open source S+ ?
This is not a criticism. I'm just curious. Is there an effort to keep R
comparable to S+?
Or are the two languages diverging? I am doing what probably legions have
done before me,
and legions will after me...using R on examples from text books written with
S+ code. Most of the
time everything appears to be equivalent. And then there are amazing
divergences in commands. For
instance:
S:
2009 Jun 24
0
[LLVMdev] New HLVM examples
HLVM is a garbage collected virtual machine built upon LLVM:
http://forge.ocamlcore.org/projects/hlvm/
The development of HLVM was described in a series of three OCaml Journal
articles that turned out to be among our most popular. Consequently, we have
decided to run another series of related articles that build upon this
foundation in order to develop complete compilers. The first article
2017 Sep 29
0
Trouble when suppressing a portion of fast-math-transformations
Hi, Warren,
Thanks for writing all of this up. In short, regarding your suggested
solution:
> 4. To fix this, I think that additional fast-math-flags are likely
> needed in
>
> the IR. Instead of the following set:
>
> 'nnan' + 'ninf' + 'nsz' + 'arcp' + 'contract'
>
> something like this:
>
> 'reassoc' +
2011 Feb 04
2
vegan and sweave using xtable
Dear all,
Using:
library(vegan)
data(BCI)
mod <- radfit(BCI[1,])
mod
RAD models, family poisson
No. of species 93, total abundance 448
par1 par2 par3 Deviance AIC BIC
Null 39.5261 315.4362 315.4362
Preemption 0.042797 21.8939 299.8041 302.3367
Lognormal 1.0687 1.0186 25.1528 305.0629 310.1281
2003 Jan 13
4
Ideas needed on automation of R
I need some guidance on what is the best way to automate R I am aware of
Rterm.
First question: Is it true that R is not currently OLE accessible under
Windows 2000?
Second question: Is there an R command that echoes all R Console results to
a run log system file?
My first attempt to write a run log file is the example from the R Data
Inport/Export documentation.
> zz<-
2017 Sep 29
2
Trouble when suppressing a portion of fast-math-transformations
Hi all,
In a mailing-list post last November:
http://lists.llvm.org/pipermail/llvm-dev/2016-November/107104.html
I raised some concerns that having the IR-level fast-math-flag 'fast' act as an
"umbrella" to implicitly turn on all the lower-level fast-math-flags, causes
some fundamental problems. Those fundamental problems are related to
situations where a user wants to
2003 Jan 14
1
comparing class() -- R=NULL and S+=numeric
I'm just reading Modern Applied Statistics with S, 4th Ed., Venables and
Ribley
I'm typing in their examples in both R and S+. I need insight in the
difference
in the class() statement shown in Chap. 2. Example from book:
> names(powers.of.pi) <- -2:2
> powers.of.pi
-2 -1 0 1 2
0.1013212 0.3183099 1.0000000 3.1415927 9.8696044
>
2006 Feb 10
1
R CMD build: "Subdirectory 'R' contains invalid file names"
Hi, I get
* excluding invalid files from 'R.oo'
Subdirectory 'R' contains invalid file names:
attachLocally.Object.Rex Exception.Rex extend.default.Rex
InternalErrorException.reportBug.Rex Package.Rex Person.Rex Rdoc.Rex
setMethodS3.Rex StaticFields.Rex
when running R CMD build in R v2.3.0 devel. I do understand what is
going on. In my *.R files I keep so called Rdoc
2017 Nov 03
2
fractales
Mira el conjunto de mandelbrot en r cómo mola
https://www.google.es/amp/s/www.r-bloggers.com/the-mandelbrot-set-in-r/amp/
El 3 nov. 2017 4:20 PM, "eric" <ericconchamunoz en gmail.com> escribió:
> hola luis, podrias explicarte un poco mas ? que quieres decir con "obtener
> fractales de una imagen" ?
>
> Puedes construir una imagen con fractales, pero
2018 Jan 08
2
Issues accessing ZFS-shares on Linux
Hi,
I am having a really strange problem with my Samba shares on Debian
Buster. None of the users can access any shares, which reside on
ZFS-filesystem. Any other share works just fine. For example, if I
create a normal folder to /home with same permissions and replace a
ZFS-share with that, it works fine.
When accessing any ZFS-shares the following error is recorded:
Jan 08 22:39:56
2003 Dec 20
7
error bars around a point
All
Is there an R command to produce error bars around
a plotted point. Crawley's book uses the command
error.bar() but my version of R rejects it. Must be an
S+ command(?).
Thanks
REX
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