Displaying 20 results from an estimated 10000 matches similar to: "several plots on several pages"
2007 Sep 20
2
referencing packages?
Hi
I know how to referenc R in a scientific paper - but is there a
standardised way to reference packages?
Thanks
Rainer
--
NEW EMAIL ADDRESS AND ADDRESS:
Rainer.Krug at uct.ac.za
RKrug at sun.ac.za WILL BE DISCONTINUED END OF MARCH
Rainer M. Krug, Dipl. Phys. (Germany), MSc Conservation
Biology (UCT)
Plant Conservation Unit
Department of Botany
University of Cape Town
Rondebosch 7701
2007 Oct 01
4
Concatenating one character vector into one string
Hi
I am sure this is simple - but how can I convert one charecter vector
into one string?
example:
x <- c("This ", "is ", "one ", "sentence.")
should become
"This is one entence"
Thanks
Rainer
--
NEW EMAIL ADDRESS AND ADDRESS:
Rainer.Krug at uct.ac.za
RKrug at sun.ac.za WILL BE DISCONTINUED END OF MARCH
Rainer M. Krug, Dipl. Phys.
2008 Mar 07
1
How to navigate in layout() created graph?
Hi
I created a complex layout with using layout() and it looks exactly as
I need it. But I don't want to print in the order in which the
subfigure are numbered, but in a different order.
How can I navigate in the layout so that I can specify the subfigure
in which to plot?
At the moment I am using a function which is converting the number to
mfg parameter for par, but it does not seem to
2008 Mar 14
2
Selecting elements in vector
Hi
Consider the following code
> x <- rep(1:13, 13)
> y <- 1:3
I want to select all elements in x which are equal to 1, 2 or 3.
I know that I could use
> sel <- x==y[1] | x==y[2] | x==y[3]
> x[sel]
to obtain the values, but in my analysis, the y-vector is thousands of
elements long.
Is there any way, that I can do that easily?
Thanks
Rainer
--
Rainer M. Krug, Dipl.
2007 Mar 05
4
Identifying last record in individual growth data over different time intervalls
Hi
I have a plist t which contains size measurements of individual plants,
identified by the field "plate". It contains, among other, a field
"year" indicating the year in which the individual was measured and the
"height". The number of measurements range from 1 to 4 measurements in
different years.
My problem is that I would need the LAST measurement. I only
2007 May 28
1
Where to find "nprq"?
Hi
I am trying to install the package "pheno", but it needs the package
"nprq" by Roger Koenker et al. which I can I find this package? It does
not seem to be on CRAN and googling also doesn't give me an URL - is it
still somewhere available?
Thanks,
Rainer
--
NEW EMAIL ADDRESS AND ADDRESS:
Rainer.Krug at uct.ac.za
RKrug at sun.ac.za WILL BE DISCONTINUED END OF
2007 Oct 16
3
R-2.6.0 - packages installation through a proxy - not working
Hello everyone,
I run R on Gentoo Linux and this week I upgraded R from 2.5.0 to
2.6.0. With the new build, I have stumbled upon an unpleasant problem:
I can no longer install packages from CRAN through a transparent
proxy. With the previous version, I simply added to
/usr/lib/R/etc/Renviron the following line and it functioned like a
charm:
## Proxy settings
http_proxy="SERVER:3128"
2008 Jul 09
1
version problems of rkward in ubuntu hardy repository
Hi
I tried to install rkward under ubuntu hardy heron, but it tried to
use the one from the cran repository which was newer, but it did not
install. To be able to install rkward, I had to disable the cran
repository, install rkward, lock it's version and enable the
repository again.
I have the feeling, that the dependencies are not correct (it is
looking for libqt4GUI, but I have a
2008 Feb 27
2
Plan to build Package to use GRASS from R
Hi
Sorry for crossposting, but I think this can be of interest for GRASS and R
users.
I am planning to write a package to make the use of GRASS from R easier. The
idea is to wrap the system call to execute the GRASS command into an R
command of the same name.
e.g:
r.to.vect <- function(..., intern=TRUE, ignore.stderr=FALSE)
{
comm <- paste( "r.to.vect ", ...,
2008 Feb 01
1
problem getting multiple densityplots on one page
Hi,
I used the following statements to generate unsuccessfully a 5 by 5 multiple
densityplots on a single page. If I use plot, the whole thing works.
> data <- matrix(rnorm(25), 5, 5)
> op <- par(mfrow = c(5, 5))
> for (x in 1:5) {densityplot(data[,x])}
> par(op)
Thanks
Stanley
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2006 Sep 06
4
problem with putting objects in list
Hi
I use the following code and it stores the results of density() in the
list dr:
dens <- function(run) { density( positions$X[positions$run==run], bw=3,
cut=-2 ) }
dr <- lapply(1:5, dens)
but the results are stored in dr[[i]] and not dr[i], i.e. plot(dr[[1]])
works, but plot([1]) doesn't.
Is there any way that I can store them in dr[i]?
Thanks a lot,
Rainer
--
Rainer M. Krug,
2012 Aug 22
3
Question concerning anova()
Hi
I am comparing four different linear mixed effect models, derived from updating the original one. To
compare these, I want to use anova(). I therefore do the following (not reproducible - just to
illustration purpose!):
dat <- loadSPECIES(SPECIES)
subs <- expression(dead==FALSE & recTreat==FALSE)
feff <- noBefore~pHarv*year # fixed effect in the model
reff <-
2008 Aug 01
1
bug in readRAST6 function in package spgrass6
Hi
if I try to import a raster layer which consists only of NULL values
from grass by using the readRAST6, I get an error message:
> readRAST6("HSericea_seedsDisperse_2007")
ERROR: Invalid value for null (integers only)
Error in readBinGrid(rtmpfl11, colname = vname[i], proj4string = p4,
integer = to_int) :
no such file:
2020 Sep 22
3
R > 4.0.0 on Debian 9 Stretch?
Hi Dirk,
Thanks for the explamnayion - Debian is running in a VM (and nothing really installed on it) , and I think the easiest is for me just to install Debian 10 and to use that one.
Thanks a lot,
Rainer
> On 22 Sep 2020, at 15:14, Dirk Eddelbuettel <edd at debian.org> wrote:
>
>
> On 22 September 2020 at 14:49, Rainer M Krug wrote:
> | I know this is likely
2008 Jan 27
1
Putting frame around single panels in ggplot 2 and facet_grid()
Hi
I want to highlight two panels in a grid created with facet_grid() by
putting a box around it or usiong another background colour. Is this
possible, and if yes, how?
Thanks
Rainer
--
Rainer M. Krug, Dipl. Phys. (Germany), MSc Conservation
Biology (UCT)
Plant Conservation Unit
Department of Botany
University of Cape Town
Rondebosch 7701
South Africa
Tel: +27 - (0)21 650 5776 (w)
Fax:
2011 Jul 26
1
Comparing two pdf resulting from density() and identify where significantly smaller or larger?
Hi
this might be a little bit off topic, but here it goes: lets assume I have
the following:
set.seed(13)
dat1 <- rnorm(2000, mean=10, sd=10)
dat2 <- rnorm(100, mean=10, sd=20)
d.all <- density(dat, n=1024)
d.co <- density(x[[v]], , from=min(d.all$x), to=max(d.all$x),
n=1024)
d.diff <- list(
x = d.all$x,
2011 Apr 14
2
Identify period length of time series automatically?
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Hash: SHA1
Hi
I have 10.000 simulations for a sensitivity analysis. I have done a few
sensitivity analysis for different response variables already,
but now, as most of the simulations (if not all) show some cyclic
behaviour, see how the independent input parameter influence the
frequency of the cyclic changes and "how cyclic" they actually are.
So
2006 Sep 20
4
Calculating mean together with split
Hi
I have a table called npl containing results of simulations.
It contains about 19000 entries and the structure looks like this:
NoPlants sim run year DensPlants
1 6 lng_cs99_renosterbos 1 4 0.00192
.
.
.
it has 43 different entries for sim and year goes from 1 to 100, and run
from 1 to 5.
I would like to calculate the mean of DensPlants for each
2012 Aug 21
2
define subset argument for function lm as variable?
Hi
I want to do a series of linear models, and would like to define the input arguments for lm() as
variables. I managed easily to define the formula arguments in a variable, but I also would like to
have the "subset" in a variable. My reasoning is, that I have the subset in the results object.
So I wiould like to add a line like:
subs <- dead==FALSE & recTreat==FALSE
which
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