Displaying 20 results from an estimated 3000 matches similar to: "Combind two different vector"
2010 Nov 26
1
Issues with nnet.default for regression/classification
Hi,
I'm currently trying desperately to get the nnet function for training a
neural network (with one hidden layer) to perform a regression task.
So I run it like the following:
trainednet <- nnet(x=traindata, y=trainresponse, size = 30, linout = TRUE, maxit=1000)
(where x is a matrix and y a numerical vector consisting of the target
values for one variable)
To see whether the network
2010 Dec 10
2
spatial clusters
Dear all,
I am looking for a clustering method usefull to classify the countries in
some clusters taking account of: a) the geographical distance (in km)
between countries and b) of some macroeconomic indicators (gdp, life
expectancy...).
Are there some packages in R usefull for this?
Thanks a lot for your help,
Dorina
2010 Dec 02
1
kmeans() compared to PROC FASTCLUS
Hello all,
I've been comparing results from kmeans() in R to PROC FASTCLUS in SAS and
I'm getting drastically different results with a real life data set. Even
with a simulated data set starting with the same seeds with very well
seperated clusters the resulting cluster means are still different. I was
hoping to look at the source code of kmeans(), but it's in C and FORTRAN and
2010 Dec 10
2
Help..Neural Network
Hi all,
I am trying to develop a neural network with single target variable and 5
input variables to predict the importance of input variables using R. I used
the packages nnet and RSNNS. But unfortunately I could not interpret the out
put properly and the documentation of that packages also not giving proper
direction. Please help me to find a good package with a proper documentation
for neural
2010 Dec 03
3
book about "support vector machines"
Dear all,
I am currently looking for a book about support vector machines for
regression and classification and am a bit lost since they are plenty of
books dealing with this subject. I am not totally new to the field and
would like to get more information on that subject for later use with
the e1071 <http://cran.r-project.org/web/packages/e1071/index.html>
package for instance. Does
2010 Dec 16
3
Reset R to a vanilla state
Hi all,
I need some help with R. I am looking for a function that puts R back into a
vanilla state (exactly the same when I just started it). Specifically I want
all objects in the workspace removed and all non-base packages detached and
unloaded; all base packages that are loaded on startup should remain loaded
(and preferably a .Rprofile executed as well). It would also be good if all
the
2010 Dec 10
2
Need help on nnet
Hi,
Am working on neural network.
Below is the coding and the output
> library (nnet)
> uplift.nn<-nnet (PVU~ConsumerValue+Duration+PromoVolShare,y,size=3)
# weights: 16
initial value 4068.052704
final value 3434.194253
converged
> summary (uplift.nn)
a 3-3-1 network with 16 weights
options were -
b->h1 i1->h1 i2->h1 i3->h1
16.64 6.62 149.93
2011 Jan 07
2
Stepwise SVM Variable selection
I have a data set with about 30,000 training cases and 103 variable.
I've trained an SVM (using the e1071 package) for a binary classifier
{0,1}. The accuracy isn't great.
I used a grid search over the C and G parameters with an RBF kernel to
find the best settings.
I remember that for least squares, R has a nice stepwise function that
will try combining subsets of variables to find
2010 Nov 30
5
how to know if a file exists on a remote server?
Hi,
I'd like to download some data files from a remote server, the problem
here is that some of the files actually don't exist, which I don't
know before try. Just wondering if a function in R could tell me if a
file exists on a remote server? I searched this mailing list and after
read severals mails, still clueless. Any help will be highly
appreciated.
B.C.
2010 Dec 11
2
break
Hi
I'm trying to utilize the break command for breaking the loop when the
p-value is less than 10 per cent using the urca package. But it does not
break the loop, anyone that can help me?
library(urca)
set.seed(1)
a1 <- runif(100)
lag.max <- function(object, n = 12){
matris <- matrix(NA, nrow = n)
for(i in 1:n) {
matris[i] <- ur.df(object, lags = i,
2008 Oct 12
3
blue screen: clock interrupt win2008
Hi,
when installing windows server 2008 Std hvm I get always a blue screen
telling me:
''a clock interrupt was not received on a secondary processor within the
allocated time interval''
I googled around and found, that this occured with vista as well:
http://lists.xensource.com/archives/html/xen-changelog/2007-01/msg00170.html
Config is:
+ virt-install --name=win2008ss
2011 Sep 11
8
bad seagate drive?
Hi list,
I''ve got a system with 3 WD and 3 seagate drives. Today I got an email
that zpool status indicated one of the seagate drives as REMOVED.
I''ve tried clearing the error but the pool becomes faulted again. Taken
out the offending drive and plugged into a windows box with seatools
install. Unfortunately seatools finds nothing wrong with the drive.
Windows seems to see
2010 Feb 20
2
R logo as SVG ?
Hi,
does anybody have the R logo in a vector format preferable SVG?
Need it for Freedesktop (GNOME desktop) integration of Rcmdr ...
Thanx,
jel.
--
Otto-von-Guericke University http://www.cs.uni-magdeburg.de/
Department of Computer Science Geb. 29 R 027, Universitaetsplatz 2
39106 Magdeburg, Germany Tel: +49 391 67 12768
2010 Aug 06
1
Creating timeSeries
Hi
I want to create a TimeSeries object with already defined dates (in the
first vector) so that all the data are coerced as a time series object with
the dates as they are.
Is there anyone that have an idea what to do?
2010-07-07 3.900833 3.176667 2.754167 2.045833 1.820833
2010-04-21 4.256667 3.356667 2.700000 1.820000 1.576667
2010-02-17 4.322500 3.450000 2.670000 1.792500 1.492500
2009 Sep 07
4
Upgrade from b113 to b122 - any gotchas
We are running 4 Solaris10u7 DomUs on a b113 Dom0
I''d like to upgrade the Dom0 to b122 but not rebuild the DomUs. Below
is a typical DomU xml dump. Is there anything obvious that will bite
me in upgrading from 113 to 122?
Thanks
John
virsh # dumpxml achilles2
<domain type=''xen'' id=''1''>
<name>achilles2</name>
2009 Dec 31
1
readCitationFile encoding
Hi,
does anybody know, how to enforce a certain encoding for
readCitationFile()? Haven't found any usable documentation for this :(
E.g.:
basecit <- system.file("CITATION", package="base")
source(basecit, echo=TRUE, encoding="8859-1")
readCitationFile(basecit)
BTW: 'make check' is a relativ long running task and if one changes
a source file, all
2010 Jul 22
6
Xen EOF?
Hi,
just found:
PSARC/2010/250 EOF of Solaris xVM dom0 approved.
So does this mean, Xen is officially dead on Solaris?
Regards,
jel.
--
Otto-von-Guericke University http://www.cs.uni-magdeburg.de/
Department of Computer Science Geb. 29 R 027, Universitaetsplatz 2
39106 Magdeburg, Germany Tel: +49 391 67 12768
2009 Feb 12
1
strange ''too many errors'' msg
Hi,
just found on a X4500 with S10u6:
fmd: [ID 441519 daemon.error] SUNW-MSG-ID: ZFS-8000-GH, TYPE: Fault, VER: 1, SEVERITY: Major
EVENT-TIME: Wed Feb 11 16:03:26 CET 2009
PLATFORM: Sun Fire X4500, CSN: 00:14:4F:20:E0:2C , HOSTNAME: peng
SOURCE: zfs-diagnosis, REV: 1.0
EVENT-ID: 74e6f0ec-b1e7-e49b-8d71-dc1c9b68ad2b
DESC: The number of checksum errors associated with a ZFS device exceeded
2008 Nov 12
21
zfs boot - U6 kernel patch breaks sparc boot
Hi,
in preparation to try zfs boot on sparc I installed all recent patches
incl. feature patches comming from s10s_u3wos_10 and after reboot
finally 137137-09 (still having everything on UFS).
Now it doesn''t boot at anymore:
###############################
Sun Fire V240, No Keyboard
Copyright 2006 Sun Microsystems, Inc. All rights reserved.
OpenBoot 4.22.23, 2048 MB memory installed,
2007 Feb 27
16
understanding zfs/thunoer "bottlenecks"?
Currently I''m trying to figure out the best zfs layout for a thumper wrt. to read AND write performance.
I did some simple mkfile 512G tests and found out, that per average ~ 500 MB/s seems to be the maximum on can reach (tried initial default setup, all 46 HDDs as R0, etc.).
According to http://www.amd.com/us-en/assets/content_type/DownloadableAssets/ArchitectureWP_062806.pdf I would