Displaying 20 results from an estimated 1000 matches similar to: "rarefaction variance"
2002 Feb 15
1
exact inference tests
R-community--
Is there a contributed package (or does anyone have code otherwise) for
exact inference tests and resampling statistics ala' StatExact? I've
perused the package descriptions on CRAN and didn't see anything, but
since several contain many functions, I thought perhaps I'd ask.
--Mike C.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Michael
2002 Jun 09
1
rw-patched destiny
R-devel team--
Will the patches that Brian Ripley has posted be rolled into the main
R-win distribution on CRAN? I ask because I'm going to be using R in one
of my ecology courses during fall semester, and although I'll probably
give the students a CD with R and a variety of other tools bundled onto
it, I'll also tell them where to upgrade and look for additional
packages and other
1999 Aug 02
2
zero replacement
AARRGGHH! Sometimes it's the simple things that are particularly frustrating,
especially late at night....
Can anyone suggest a simple means for replacing all of the zero values in a
matrix with NANs? I ended up writing an awk script to massage the input file,
which works, of course, but is rather an inelegant blunt instrument. I'd
prefer an R operation. I'm certain that
2002 Jun 02
2
R 1.5.0 printing problems on Win98?
Colleagues--
I'm having a problem upgrading to R 1.5.0 on a Windows 98 computer. The
windows() graphics device seems to behave strangely. A call to windows()
opens an active graphics device, as does a call to a plotting function,
e.e. plot(1:5,1:5). So far so good. When I click on the Printer icon
(with the graphics device active) nothing happens. Likewise when I use
win.print() from the
2002 Jun 17
3
Error bars.
There was an inquiry on this list recently about plotting some simple
error bars on a graph. Now Splus has a function (error.bar ---
originally written by Sue Clancy of DMS, CSIRO, I believe) to do this
job virtually at the touch of a key. (Well a few keys. :-) ) The
error.bar function is written completely in raw S --- no calls to
``.Internal'' or anything like that. So it would be
2002 Jul 24
0
[R] Free Software Application for UNIX/Linux and Microsoft Windows
Dear Michael Camann,
My concern was after having a hetero-computing environment for many years, I
found that I had to keep an old version of Microsoft Windows based
applications to be able to interact with my constituents. This at times can
become very expensive. I have had to limit my budget on the UNIX/Linux
platform to compensate for Microsoft Windows based applications.
With Open Office
2002 Jul 24
0
[R] Free Software Application for UNIX/Linux and Microsoft Windows (PR#1827)
Dear Michael Camann,
My concern was after having a hetero-computing environment for many years, I
found that I had to keep an old version of Microsoft Windows based
applications to be able to interact with my constituents. This at times can
become very expensive. I have had to limit my budget on the UNIX/Linux
platform to compensate for Microsoft Windows based applications.
With Open Office
2000 Aug 22
2
various ordinations
Colleagues,
I'm developing a library of functions for community ecology analyses and
have a couple of questions that I've not been able to answer via faqs or
docs.
1) Are there existing functions for:
a) Bray-Curtis (polar) ordination?
b) non-metric multidimensional scaling (NMDS)?
c) canonical correlation analyses (CCA and DCA)?
d) TWINSPAN (doubtful...)?
2) If not,
2002 Aug 01
1
Kate problem
Hello,
I have just installed R 1.5.1 on a new SuSE 8.0 install using the
binaries on the home page. I am trying to configure the KDE editor Kate
to use from R. R seems able to launch it fine, but it crashes when I
try to save the file I am editing.
Is there a fix?
Thanks,
John.
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r-help mailing list -- Read
2000 Feb 22
1
identify() output doesn't print
Hope this isn't a faq, but....
I'm using R 0.99 for Windows under Win98. When I label points in a scatterplot
with identify(), the labels appear as expected on the graphics device, but do
not print when I select the printer icon. The scatter plot itself prints just
fine-- only the output from identfy() is missing. Can anyone offer any hints?
--Mike C.
2002 Apr 29
2
cluster analyses
I'm clustering rather large data sets and would like to cut the dendrograms
to get a better view of specific components. I calculate the dissimilarity
matrix using daisy() because I have a mixture of variable types: factors,
ordered factors and numerical variables. If I want one dendrogram, I use
agnes() for the agglomerative nesting and pltree() to draw the dendrogram.
That way, I get the
2000 Aug 04
2
pattern on bars?
Colors are real nice, but the publication I'm preparing these barplots for
permits only black and white. The Splus plot options ``dbangle'' (or plain
``angle'') and ``density'' (as on p. 65 of MASS 1st ed.) don't seem to be
available in R. Is there another way to do this?
I'm running R 1.1.0 on Linux (intel). Thanks.
2000 Nov 23
3
hatch or line fill
M. Camanm posted in Jul 1999 the following message:
"
Is there any way to fill the bars in a barplot() with solid lines for
postscript output, i.e. cross hatch or parallel
lines, or a halftone gray rather than (semi) continuous-tone gray
produced by gray()? S allows this, or at least
used to, via the angle and density arguments to barplot(). The objective
of course, is to produce camera
2001 Sep 07
3
State space modelling
Hi, I'm new to R and am trying to implement a state-space model, and do some
simulations looking at how well it works. Does anyone have an example I
could use as a template? I'm having trouble working out where to start, and
haven't been able to find anything similar in the help files or on the web.
My example is a surplus production fisheries model, so something similar to
that
2000 Oct 05
2
DCom / StatConnector / Windows-Cygnus-Gcc ?
Hello List !
I want to use R as statistical & Graphical Tool for biological
simulation programs. So, I want to combine my programs (written
under cygnus-gcc on NT4.0) with R 1.0.1.1 under Windows.
The data, produced by my program will be sent to R. There it should
be statistically "transformed" and graphically displayed. The
simulation program may wait until R has calculated
2002 Jun 20
6
Legality of copying from Splus.
A few days ago, I sent a question to the r-help list enquiring
about the
*** LEGALITY ***
of porting a function from Splus into R. As a particular example,
I referred to error.bar.
Several people posted code for various versions of error.bar which
they had written, but that was NOT WHAT I WAS ASKING FOR/ABOUT!!!
[Can't anybody ***read*** these days?]
I asked: IS IT
2011 Nov 25
1
rarefaction curves: unable to run the R script from Gimlet
Hi everybody,
i'm trying to draw rarefaction curves to estimate a population size from
genotyped faeces.
I used the Gimlet software which gave me a script and a "rarefaction.txt"
file. I've copied both files in the work directory of R.
I changed library(nls) by library(stats) in the script.
But now, i'm still unable to run it.
If i ask to show error messages, the software
2009 Nov 13
0
Rarefaction Curve by Individuals not Sites - vegan (specaccum)
Hi List,
I’m using the vegan function specaccum to produce a rarefaction curve. In
the function’s help it says: “Function ‘specaccum’ finds species
accumulation curves or the number of species for a certain number of sampled
sites or individuals”. Well, I would like to finds this curve for
individuals, but when I compute it the function (using the ‘rarefaction’
method) gives me Sites, Richness
2014 Jul 08
0
Extrapolation of rarefaction curve
Hi all,
I used R (vegan package) to make rarefaction curves and I calculated the
Chao index for each curve. However, the plateau is far from reached.
What I want to do now is the following:
Based on the Chao index, I want to extrapolate the curve so I get an x-value
which gives me an estimation of the total number of clones I'd have to pick
up and sequence in order to have a full coverage of
2018 Feb 11
7
[Bug 13266] New: Writing of files to Apple's new "AP" controller model SSD's takes 4x longer.
https://bugzilla.samba.org/show_bug.cgi?id=13266
Bug ID: 13266
Summary: Writing of files to Apple's new "AP" controller model
SSD's takes 4x longer.
Product: rsync
Version: 3.1.3
Hardware: x64
OS: Mac OS X
Status: NEW
Severity: critical
Priority: P5