Displaying 13 results from an estimated 13 matches for "ucgamdo".
2003 Oct 20
0
Re: win.metafiles in linux and R
...esearch Laboratories
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> -----Original Message-----
> From: Prof Brian Ripley [mailto:ripley at stats.ox.ac.uk]
> Sent: Monday, October 20, 2003 7:16 AM
> To: ucgamdo at ucl.ac.uk
> Cc: Ted.Harding at nessie.mcc.ac.uk; r-help at stat.math.ethz.ch
> Subject: Re: [R] Re: win.metafiles in linux and R
>
>
> On Mon, 20 Oct 2003 ucgamdo at ucl.ac.uk wrote:
>
> > I posted a similar query some months ago. Some people
> answered stating tha...
2003 Aug 26
3
Exporting R graphs
Hi,
I have been a happy user of R for windows for more than a year, however,
recently, I started using linux as my operating system and now I have
practically switched completely. Of course, I still use R with linux,
however, certain nice features of R in windows seem to be missing or
hidden. I need help in basically two points:
1. In windows, I could copy the contents of a window graphic's
2003 Sep 15
1
Unable to plot dataframes
I moved recently from R in windows to R in linux, and have found out that I
cannot plot data frames. I think is an error related to the X server,
however, I haven't got the slighliest clue of what to do. To be more
specific this is a typical example of what happens to me:
> x <- data.frame(cbind(rnorm(50), rnorm(50), rnorm(50)))
> plot(x)
Error in text.default(x, y, cex = cex, font
2003 Oct 02
0
R] Re: Mandelbrot set and C code --
...ow 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 at ucl.ac.uk
Subject: [R] Re: Mandelbrot set and C code
To: Martin Maechler <maechler at stat.math.ethz.ch>
Cc: r-help at stat.math.ethz.ch
Message-ID: <3.0.5.32.20031001140936.007e2100 at pop-server.ucl.ac.uk>
Content-Type: text/plain; charset="us-ascii"
-- Snip --
To anyone...
2003 Oct 02
0
R] Re: Mandelbrot set and C code --
...n 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 at ucl.ac.uk
> Subject: [R] Re: Mandelbrot set and C code
> To: Martin Maechler <maechler at stat.math.ethz.ch>
> Cc: r-help at stat.math.ethz.ch
> Message-ID: <3.0.5.32.20031001140936.007e2100 at pop-server.ucl.ac.uk>
> Content-Type: text/plain; charset="us-ascii&qu...
2003 Oct 20
1
Re: win.metafiles in linux and R
I posted a similar query some months ago. Some people answered stating that
win.metafiles were not available for R in linux. However, I was suggested
to use the package RSvgDevice, which allows transforming any graphic device
into Scalable Vector Graphics format, this file can then be opened with
sodipodi, and really impresive stuff can be achieved. I also noticed that
OpenOffice for linux has an
2003 Aug 27
1
Exporting R graphs (review)
Hi guys,
Yesterday I posted my first couple of questions (see bottom of this
message) to this forum and I would like to thank you guys for all the
useful feedback I got. I just would like to make some comments:
1. Exporting R graphs as vector graphics:
The best answer came from Thomas Lumley <tlumley at u.washington.edu>
He suggested using the RSvgDevice package. As far as I know SVG
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 =
2003 Sep 01
0
Re: Plotting bivariate normal distributions.
You'll find that it is a lot easier to do it in R:
# lets first simulate a bivariate normal sample
library(MASS)
bivn <- mvrnorm(1000, mu = c(0, 0), Sigma = matrix(c(1, .5, .5, 1), 2))
# now we do a kernel density estimate
bivn.kde <- kde2d(bivn[,1], bivn[,2], n = 50)
# now plot your results
contour(bivn.kde)
image(bivn.kde)
persp(bivn.kde, phi = 45, theta = 30)
# fancy contour with
2003 Sep 03
0
Re: normal distribution in samples of soil organisms.
Hi,
You didn't specify the satistical model you are intereted in, I will
suppose it is something like:
#Organims ~ Landscape + Soil + Depth + Species
I suppose you have a table of with something like...
Spec Lands Soil Depth #Organisms
A 1 1 1 10
A 1 2 1 2
B 1 1 1 0
B 2 2 2 2
... etc,
Normally, the count of organisms in soil samples follows a posisson
distribution, not a normal one.
2003 Sep 09
0
Re: Hierarchical clustering
I think are looking for the function 'cutree' from package mva
checkout its documentation:
> require(mva)
> ?cutree
pleanty of examples to do what you want.
#############################################################################
Hi R lovers!
I am using the agnes function of the package cluster to compute a
hierarchical clustering.
I'd like to know if somebody has ever
2003 Sep 17
0
Persp and color (again)
Hi guys,
After all the discussion yesterday about persp and color, I decided to
have a more closer look at demo(persp), and decided to write a function to
generate 'topo-like' colours to plot perspectives (Thanks a lot to Uwe
Ligges for his enlightning comments regarding the code in the demo).
Here it goes, I believe that this function will be pretty useful to a lot
of people:
2003 Sep 08
2
Re: clustering polypeptide sequences
Hi Peter,
You didn't give a very specific example, but it seems to me that what
you wish to do is not really complicated. I suppose you have created a
table of sequences vs. say hyprophobicity, charge, etc..., something like...
seq hydroph arom
b0001 0.104762 0.000000
b0002 0.035122 0.065854
b0003 0.024193 0.070968
b0004 -0.096729 0.084112
b0005 -0.973469 0.091837
b0006