Displaying 20 results from an estimated 1000 matches similar to: "Which Linux OS on Athlon amd64, to comfortably run R?"
2007 Dec 03
1
again on ubuntu 7.10 and amd64
Hi there,
this is my first post to the list.
I'm a newcomer to the linux world.
I started using it on a regular basis on May and I must say I'm quite
comfortable with it, even if I have to re-learn a lot of things.
But this is not a problem, I will improve my knowledge with time.
My main problem now is that I bought myself a new computer (described at
the end of this e-mail) and I was
2007 Jul 26
3
substituting dots in the names of the columns (sub, gsub, regexpr)
Dear R users,
I have the following two problems, related to the function sub, grep,
regexpr and similia.
The header of the file(s) I have to import is like this.
c("y (m)", "BD (g/cm3)", "PR (Mpa)", "Ks (m/s)", "SP g./g.", "P
(m3/m3)", "theta1 (g/g)", "theta2 (g/g)", "AWC (g/g)")
To get rid of spaces and
2008 Mar 08
3
Problems with installing the rgl package on Linux
Dear All,
I am trying to install the rgl package on R 2.6.1 running on Fedora 8
(Linux), but I am experiencing the following problems:
-----------------------------------------
configure: error: X11 not found but required, configure aborted.
ERROR: configuration failed for package 'rgl'
** Removing '/usr/lib/R/library/rgl'
-----------------------------------------
Any ideas?
2006 Sep 28
1
I: differences between R and S (reproducing a plot from a book )
Dear R-Users,
I'm currently studying the book
Statistical model in S by Chambers J.M and Hastie T.J..
At page n 3 there's a plot showing the means of a variable at each of the
levels of the factors of an experiment.
I hope to be able to reproduce it here by ASCII art.
B6
S |
| Thin |
| | |
| | B3
__|_____|_____|__......etc
| |
2007 Nov 06
2
Is it possible to modify the position of the graphic window ?
Dear R users,
is there a way to tell R where to draw the windows where the plots are
drawn ?
I always get that window on the right of my screen, where it interferes
with my Xemacs + ESS window where I'm writing lines.
Of course I can move it manually, but I would like to have it
permanently on the right, rather than on the left.
Thanks for any advice
Ottorino
Ubuntu 7.10
Xemacs 21.4
2008 Jan 29
3
on trellis.par.set/get (reproducing figures from Pinheiro & Bates)
Dear R users,
I would like to exactly reproduce a figure like the 1.5 or 1.9 or 4.13
from the book
Mixed effects models in S and S-Plus.
Not for the sake of it, but because I have my own data I would like to
plot in that fashion
(no colors)
If I write
plot(ergoStool)
I can get a good informative plot with colors, but I would like to have
a B&W one instead.
I've played a little with
2009 Sep 03
2
dividing a dataframe column by different constants
Dear R users, today I've got the following problem.
Here you are a dataframe as example.
There are some SAMPLES for which a CONCentration was recorded through TIME.
The time during which the concentration was recorded is not always the same,
10 points for Sample A, 7 points for Sample B and 11 for sample C
Also the initial concentration was not the same for the three samples.
I would like
2004 Nov 05
1
I: a coloured band within each panel of a lattice bwplot
Hi all,
I would like to add to each panel of a bwplot a coloured central band,
centered on the mean of the values, being its width +- 2% of the mean
itself.
I know how to add lines, i.e. something like
bwplot(X ~ Y|FACTOR
data=my.df,
panel= function(x, y){
panel.bwplot(x, y)
panel.abline(v = mean(x, na.rm = T) - mean(x, na.rm = T) * 0.02
panel.abline(v =
2004 Aug 03
1
(Lattice) How to improve the readability of a bwplot, i.e. separating groups somehow
Hi all,
first of all thanks for the answer to my previous question on lattice some
time ago.
In particular to Patrick Connolly for advices on netiquette (I hope this
time I'm doing right....)
and to Deepayan Sarkar fro the help on lattice.
Now, my nowaday problem.
Please consider the following
mydf<-cbind.data.frame(
RESPONSE = c(rnorm(9,rep(2:4,each=3),10),
2009 Nov 12
1
Rearranging long tables, Sweave, xtable, LaTeX
Dear R-users,
consider the two following outputs, ## 1 and ## 2
\begin{Scode}{Setup, echo = FALSE, print = FALSE, eval = TRUE}
with(expand.grid(Fact1 = 1:3, Fact2 = 1:40), table(Fact1,
Fact2)) ## 1
xtable(with(expand.grid(Fact1 = 1:3, Fact2 = 1:40), table(Fact1,
Fact2))) ## 2
\end{Scode}
The first line
with(expand.grid(Fact1 = 1:3, Fact2 = 1:40), table(Fact1, Fact2))
2008 May 06
4
Is there in R a function equivalent to the mround, as found in most spreadsheets?
Dear R-users,
I have the following problem
In a lab experiment I have to mix three solutions to get different
concentrations of various molecules in a cuvette
I've used R to calculate the necessary ?liters for each of the level of
the experiment and I must confess that it is more useful and easier to
achieve the results than using spreadsheets.
But there's a problem.
Imagine that
2009 Dec 02
4
Again on overlaying plots (a plot region within a plot region)
Dear R-users,
after seeking for help in R-search
I did not find any hint on my particular problem.
Countless help on "true" overlay, but nothing on this.
Please consider the following:
par(mfrow = c(2, 1))
T <- seq(0, 20, by = 0.01)
## PLOT 1
plot(T, 30*exp(-0.65*T),
type = "l"
)
points(T, 30*exp(-0.26 * T), type = "l", lty = "F8")
points(T,
2004 Oct 26
1
indexing within the function "aggregate"
Hi all,
I'm trying to work out the following problem, but I can't imagine how.
I have the following (much reduced & oversimplified) dataset
My.df <-
cbind.data.frame(PPM=c(15.78, 15.81, 15.87, 15.83, 15.81, 15.84,
15.91, 15.90, 15.83, 15.81, 15.93, 15.83,
15.70, 15.92, 15.76, 15.81, 15.91, 15.75,
15.84, 15.86, 15.82, 15.79,
2009 Nov 16
2
on gsub (simple, but not to me!) sintax
Dear R users,
my problem today deals with my ignorance on regular expressions.
a matter I recently discovered.
Consider the following
foo <-
c("V_7_101110_V", "V_7_101110_V", "V_9_101110_V", "V_9_101110_V",
"V_9_s101110_V", "V_9_101110_V", "V_9_101110_V", "V_11_101110_V",
"V_11_101110_V",
2009 Aug 13
1
R code to reproduce (while studying) Bates & Watts 1988
Hi R users,
I'm here trying to understand correlated residuals in nonlinear estimation.
I'm reading/studying the book Bates, D. M. and D. G. Watts, (1988),
/Nonlinear regression analysis and its applications/, Wiley, NY. pages
92-94, trying to reproduce the figures and to find out the code in R to
perform the necessary calculations.
I also consulted Pinheiro and Bates, but without
2009 Oct 30
1
How to properly shade the background panels of an xyplot?
Dear R users,
this is a follow up of this message
http://tolstoy.newcastle.edu.au/R/e6/help/09/05/13897.html
I'm reproducing the core of it for convenience.
> //
> / data(Oats, package = "MEMSS") /
> / tp1.oats <- xyplot(yield ~ nitro | Variety + Block, /
> / data = Oats, /
> / panel = function(x, y, subscripts, ...) { /
2010 Apr 22
1
Multicolor main title in a plot or mtext
Dear R-users, the problem I'm facing today is to write a
multicolor main title in a plot.
I would like to have 3/4 colors to help people in the
audience to visually realize what is what in a 4x2 plot array
On top of each plot I would like to have two lines.
The 1st line will indicate what is plotted
The 2nd line will indicate a a reference
Graphically speaking I would like a result similar
2009 Oct 30
1
insert a text in panels, always in the same position (lattice, ltext, ?prepanel?)
Dear R-users,
my present problem is related to lattice.
I would like to put some text in each panel, namely a p-value.
I therefore wrote a simple panel function as reported here below.
I'm able to write the value in each panel at the maximum value of y for
each panel,
but this obviously overlay the text to the points.
What I'm looking for is to write the text always in the same
2010 Oct 19
2
superpose.polygon, panel.polygon and their colors
Dear R-helpers,
the problem I'm facing today is to convince lattice to paint some areas
in gray.
The areas I would like to have in gray, are confidence bands
I've googled around in the mailing list archives and eventually find
some clues.
This link is my starting point
http://tolstoy.newcastle.edu.au/R/e2/help/07/04/15595.html
I'm reproducing here the code for your convenience
est
2007 Jul 30
4
how to combine data of several csv-files
Hello,
I'm looking for a solution for the following problem:
1) I have a folder with several csv files; each contains a set of
measurement values
2) The measurements of each file belong to a position in a two
dimensional matrix (lets say "B02.csv" belongs to position 2,2
3) The size of the matrix is fix
4) I cannot assure to have a csv file for each position
5) Each position