Displaying 20 results from an estimated 2000 matches similar to: "background computation, &"
2005 Nov 23
5
finding peaks in a simple dataset with R
I've been asked in private,
(and am replying BCC to the asker),
>> I saw your post on the R-help archives page about the possibility of
>> porting a function from S-Plus called peaks() to R. I am looking for
>> some way to locate peaks in a simple x,y data set, and thought that R
>> might be the way to go.
"of course" it is the way to go, don't get
2005 Nov 22
1
problem with "parse"
Hi there again,
I have a problem with the "parse"-command.
First of all, I show you in a simplified way, what I am trying to do and what "R" answers:
> test
[1] "u.g$par1, u.g$par2"
> mode(test)
[1] "character"
> ausdruck <- parse(text = test)
Error in parse(file, n, text, prompt) : syntax error in "u.g$par1,"
2006 Aug 25
2
increasing the # of socket connections
Dear "R-help"ers,
using snow on socket connections, I ran into the following error
> cl <- makeSOCKcluster(hosts)
Error in socketConnection(port = port, server = TRUE,
blocking = TRUE : all connections are in use
with "showConnections(all=T)" showing 50 open connections.
As - for administrative reasons - I would prefer to use snow's
SOCK capabilities (instead
2015 Feb 16
3
/etc/ssl/certs/dovecot.pem erased by OpenSuse's update mechanism
Hi,
this is not a genuine Dovecot bug, more a nuisance.
It applies to OpenSuse 13.2 but maybe also to other Linux's.
The standard installation of Dovecot (especially 10-ssl.conf) places the
certificate dovecot.pem in /etc/ssl/certs.
Sometimes during updates does OpenSuse renew all certificates in /etc/ssl/certs
and erases dovecot.pem. This blocks further access to the mailbox.
I found a
2005 Jul 12
2
Complex plotting in R
Hi list,
I'm looking for a function or a combination of functions to do panel plotting of mixed graph types with the same x axis.
I would like to construct a panel with 3 stacked windows with on top a histogram, below that 2 cdf plots. They all have the same x axis value but different y axis values. Is it possible to construct something like that?
I've looked into the lattice package
2005 Sep 05
1
RODBC and 64 bit
Hi all,
I was quite succesfully working with the RODB package on a 32 bit linux
box to connect to a MSSQL Server via the freeTSL driver. After changing
to a 64 bit environment I ran into some segmentation faults using
function sqlUpdate on large database operations (the actual seg faults
occured in the call to the C function ODBCUpdate).
I just briefly looked into the code and found some extensive
2011 Apr 15
1
Can't use attributes from gml file in Cytoscape
Hello,
I am exporting a graph in "gml" format from igraph 0.5.5. When I open the
file in Cytoscape v.2.7 I can't map the color attribute that I assign to the
graph when I export it from igraph. Could anyone help me in this?
Thanks.
--
Warm Regards,
Sandeep Amberkar
BioQuant,BQ26,
Im Neuenheimer Feld 267,
D-69120,Heidelberg
Tel: +49-6221-5451354
[[alternative HTML version
2004 Mar 19
2
Beginners question
Dear list,
I've been messing around with coding functions in R and it just won't make
sense to me.
Running my analysis by hand on command line is fine and works but because
of the repetitive nature of the job I would like to code a function for it.
My problem:
I would like to read in data from a file in my current working dir.
so my code would look like:
myanalysis <-
2009 Mar 23
1
Iterative Proportional Fitting, use
Hi list,
I would like to normalize a matrix (two actually for comparison) using
iterative proportional fitting.
Using ipf() would be the easiest way to do this, however I can't get my
head around the use of the function. More specifically, the margins
settings...
for a matrix:
mat <- matrix(c(65,4,22,24,6,81,5,8,0,11,85,19,4,7,3,90),4,4)
using
fit <-
2007 Jul 17
2
INIT: Id "x0" respawning too fast: disabled for 5 minutes
Hello,
I''m running a SLES10 SP1 Server as a Dom0 and as DomU.
I have allocated 1024 Mb RAM to the DomU and one virtual processor (physical processor is a dual core Intel Xeon 3.4 Ghz).
A warning is regularly displayed on the standard output :
INIT: Id "x0" respawning too fast: disabled for 5 minutes
Any idea where that come from ?
Thanks in advance.
Hervé Marcy
2006 Mar 23
1
Cross correlation in time series
Hi list,
I'm working on time series of (bio)physical data explaining (or not) the
net ecosystem exchange of a system (+_ CO2 in versus CO2 out balance).
I decomposed the time series of the various explaining variable
according to scale (wavelet decomposition). With the coefficients I got
from the wavelet decomposition I applied a (multiple) regression, giving
some expected results. The net
2005 Mar 17
1
kernlab sigest
hello,
I have the following problem setting parameter 'frac' in the sigest
function of the kernlab package.
## executing the ?sigest example:
library(kernlab)
data(spam)
srange <- sigest(type~.,data = spam)
## works fine...
## setting 'frac' explicitly
## (in this case even to the default of .25)
options(error=recover)
srange <- sigest(type~.,data = spam, frac = .25)
##
2005 Nov 16
1
spatial statistics on images, any packages?
Hi list,
Is there a package that covers the evaluation of spatial statistics on
images and not on point data? I've converted an image matrix to x, y
coordinates and a measurement value but evaluation with the package
spdep (not really designed for image data I suppose) is unworkable. Any
suggestions?
Regards,
Koen
2007 Mar 22
1
non-linear curve fitting
Hi list,
I have a little curve fitting problem.
I would like to fit a sigmoid curve to my data using the following equation:
f(x) = 1/(1 + exp(-(x-c)*b)) (or any other form for that matter)
Where x is the distance/location within the dataframe, c is the shift of the curve across the dataframe and b is the steepness of the curve.
I've been playing with glm() and glm.fit() but without
2011 Sep 13
2
GO & Protein Complex Analysis for Homo sapiens
Dear All,
I need to fetch GO ontologies for Homo sapiens with their mappings to
corresponding Uniprot identifiers. I would be using this information to
compare result from a clustering algorithm with existing protein complexes.
This would be a test to check how the clustering algorithm accurately
captures GO terms with respect to the known protein complexes. Can anyone
suggest a simple workflow
2008 Sep 09
1
How do I compute interactions with anova.mlm ?
Hi,
I wish to compute multivariate test statistics for a within-subjects repeated measures design with anova.mlm.
This works great if I only have two factors, but I don't know how to compute interactions with more than two factors.
I suspect, I have to create a new "grouping" factor and then test with this factor to get these interactions (as it is hinted in R News 2007/2),
but
2003 Oct 16
2
Samba Installation Problem
I am trying to install samba 3.0.0 and getting below error when try to run ./configure…
Please advise. Thanks.
#pwd
/usr/local/src/samba/3.0.0/source <<<<<<<<<<<<Is this correct place to run .configure ?
# ./configure
checking for gcc…..no
checking for cc……no
checking for cc……no
checking for c1…….no
configuration errror : no acceptable c compiler found in
2009 Sep 29
6
Dualboot CentOS and Windows
Hi,
I have to install CentOS on a spare partition of a laptop with
Windows pre installed. Is there anything I have to watch out for?
Couldn't find anything in the wiki or does the installer handle this
well without me doing some magic, or so?
TIA,
Frank.
2005 Nov 23
1
assign() problem
I've written a piece of code (see below) to do a wavelet image
decomposition, during the evaluation of this code I would like to write
the results of some calculations back to the R root directory. I used
assign() to do so because the names should vary when going thrue a
while() loop. For some unknown reason I get an error that says:
Error in assign(varname[i], imwrImage) :
2000 Jun 19
0
Problem with yppasswd ans openssh on Irix
Hi,
I compiled openssh 2.1.1p1 on Irix 6.2 with MIPS 7.2.1.2m compiler. All
works fine except the yppasswd command from Irix (it's no NIS-problem,
same with rlogin works):
Logged in with 'ssh machine -l user1'
# who
user1 ttyq0 Jun 19 15:17 (xxxxx.iwr.uni-heidelberg.de)
# ypcat passwd |grep user1
user1:xxxxxxxxxxxxx:1535:1500:User1:/usr/people/user1:/bin/tcsh
# ypcat passwd |grep