Displaying 20 results from an estimated 2000 matches similar to: "Add line to plot from stl decomposed time series?"
2009 Dec 11
1
Creating bibtex file of all installed packages?
Hi
is there an easy and fast way, to generate a BibTeX file of all installed /
loaded packages and R?
I know about toBibtex(citation()) to extract the BibTeX for a single
package, but how can I generate a file containg citations for all installed
/ loaded packages?
Cheers,
Rainer
--
NEW GERMAN FAX NUMBER!!!
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology,
UCT),
2009 Feb 25
0
R interest group at Stellenbosch University formed: R@SUN
Hi
I know this only affects a small number of subscribers, so I apologize
to the "Non Stellenbosch University subscribers" for the noise.
Two weeks ago, four R users met and discussed the possibility of forming
an interest group of R users at SUN. The interest group (R at SUN) has the
aim of:
? Promote the use of R at SUN (Stellenbosch University);
? Organize Hons stats courses using
2009 Oct 30
2
Ubuntu packages compiled with 2.9
Hi
I upgraded to R 2.10.0, and I encounter a problem with some packages on R,
installed via apt-get..
They are still compiled by 2.9 and give me an warning when I load the
packages. Will these packages be recompiled with R 2.10, or should I rather
switch to self-compiling?
Cheers,
Rainer
--
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology,
UCT), Dipl. Phys.
2011 Feb 01
2
How to change size of xlab inplot?
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Hi
I want to increase the size of the text for xlab in the plot command:
plot(1,1, xlab="Label")
I tried cex, cex.caption and others, but none worked. Is there a way of
using cex=2 for the xlab?
Thanks,
Rainer
- --
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation
Biology, UCT), Dipl. Phys. (Germany)
Centre of
2010 Jul 29
2
Replace last element in a vector - elegant solution?
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Hi
I have to replace the last element of a vector with 0, but the length of
x is not known at coding time. So I do the following:
x <- 1:10
x
x[length(x)] <- 0
x
it is working nicely, but I am wondering: is there a more elegant
solution( like tail(x, 1) <- 0 , which does not work)?
Thanks,
Rainer
- --
Rainer M. Krug, PhD (Conservation
2010 Jul 08
1
x-axis labels for barplot of zoo object
Hi
Let's assume, I have a dataset of 1000 datapoints, which represent daily
recordings of a measurement.
They are stored as a ts object (see example below)
Now I want to represent them as a barplot. I found the barplot in the zoo
package, but I have one problem: the x-axis labels. I would like to have the
x-axis labels as either years only (located at the beginning of the year),
or
2010 Oct 19
1
Implementing R's recycling rule
Hi
I want to use R's recycling rule. At the moment I am using the following:
x <- c(1, 2, 3)
n <- 10
## so using the recycling rules, I would like to get from FUN(x, n)==1
## I am doing:
xRecycled <- rep(x, length.out=n)[n]
This works, but it seems to me that I am missing something really basic here
- is there more straightforward way of doing this?
Cheers,
Rainer
--
NEW
2009 Oct 21
1
Keeping package sources for recompilation with new R version?
Hi
I am using Ubuntu Hardy, and I installing many packages from source. I am
keeping my R packages fairly up to date.
My question is: is there a way, of keeping the source packages, so that when
I am installing a new version of R, an update.packages(checkBuilt=TRUE) will
only fetch the packages when newer ones are available, but otherwise will
use the local copies?
To rephrase it, is it
2011 Mar 11
2
How to get all combinations between two character vectors?
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Hi
I know there is a function - I have used it before - but I always forget
what it is called...
I need the combination of two character vectors, i.e:
x <- c("a", "b")
y <- c("x", "y")
z <- THEFUNCTION(x, y)
z == c("ax", "ay", "bx", "by")
I promise I will
2011 Jan 13
1
Unexpected behaviour of write.csv - read.csv
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Hi
Assuming the following:
> x <- data.frame(a=1:10, b=runif(10))
> str(x)
'data.frame': 10 obs. of 2 variables:
$ a: int 1 2 3 4 5 6 7 8 9 10
$ b: num 0.692 0.325 0.634 0.16 0.873 ...
> write.csv(x, "x.csv")
> x2 <- read.csv("x.csv")
> str(x2)
'data.frame': 10 obs. of 3 variables:
$ X:
2009 Oct 07
2
Second y-axis --- alternative to par(new=
Hi
is there an alternative to par(new), for ading data to a plot for a
different y-axis?
My problem with par(new=TRUE) is, that it re-defines all axis and labels (as
in example 1) and one has to use xlim=... to fix the x-axis.
I am looking for something, which simply resets the y-axis, so that a new
plot() (or points()/lines()) keeps the x-axis, but re-defines the y-axis.
Is there something
2010 Dec 08
1
RGL crashes
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Hi
rgl crashes my R session, when resizing the rgl graphic window.
I am using Ubuntu Maversick, with dual monitor setup. If I disconnect
one monitor, I can resize it "a little bit", but it still craches if I
enlarge it to much.
I assume that the problem has to do with allocated graphic memory in the
kernel, but why is R crashing
2010 Dec 08
1
RGL crashes
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Hi
rgl crashes my R session, when resizing the rgl graphic window.
I am using Ubuntu Maversick, with dual monitor setup. If I disconnect
one monitor, I can resize it "a little bit", but it still craches if I
enlarge it to much.
I assume that the problem has to do with allocated graphic memory in the
kernel, but why is R crashing
2010 Nov 12
1
Optimizing compilation of R
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Hi
I know this has been asked before, but I can not find it - so my apologies.
I want to compile R myself, to optimize it for speed. There is a small
section (a few lines actually) in the R-admin manual (Compilation-flags)
which states that the LDFLAGS "on recent systems
?'-Bdirect,--hash-style=both,-Wl,-O1'? is recommended".
But
2010 Sep 25
2
OT: What distribution is this?
Hi
This is OT, but I need it for my simulation in R.
I have a special case for sampling with replacement: instead of sampling
once and replacing it immediately, I sample n times, and then replace all n
items.
So:
N entities
x samples with replacement
each sample consists of n sub-samples WITHOUT replacement, which are all
replaced before the next sample is drawn
My question is: which
2011 Jan 10
2
write.table equivalent for lists?
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Hi
I am writing simulations in R, and quite regularly, I have to save lists
and objects to HDD and load it later again.
So I am wondering: why is there no function to write lists (and S3, S4
objects) onto HDD WITHOUT keeping the name? What I mean is:
For data.frames I can use
x <- data.frame(x = runif(10))
write.table(x, "x.txt)
rm(x)
y
2009 Oct 02
1
nls not accepting control parameter?
Hi
I want to change a control parameter for an nls () as I am getting an error
message "step factor 0.000488281 reduced below 'minFactor' of 0.000976562".
Despite all tries, it seems that the control parameter of the nls, does not
seem to get handed down to the function itself, or the error message is
using a different one.
Below system info and an example highlighting the
2012 Jun 22
1
Creating interactive 3D graphs for embedding in pdf not possible in R?
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Hi
Just to be sure: I couldn't find a way of creating an interactive 3d graph which can be embedded
in a pdf - is it correct that this can not be done with R?
Cheers,
Rainer
- --
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys.
(Germany)
Centre of Excellence for Invasion Biology
Stellenbosch
2014 Jan 22
1
Creating Namespace and locking it during runtime?
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Hi
I would like to create a Namespace during runtime, and not during
loading a package.
My reasoning is that I want to be able to store a number of variables
and to "protect them from the user" (might be even myself). The code
will not be in a package, but will be source()ed.
Next step: pass variables from org mode / emacs to R and to
2011 Oct 05
2
"unload" a library while testing?
Hi
I am testing a package, and after I make changes, I have to close R and open
R again to load the new version (same version number) of the package I am
working on. So my question:
is there a function which removes a package, i.e
library(myPackage)
> Package is loaded
unlibrary(myPackage)
> package is not loaded any more
Thanks,
Rainer
--
Rainer M. Krug, PhD (Conservation Ecology,