Displaying 20 results from an estimated 400 matches similar to: "spatial clusters"
2007 Aug 08
2
cointegration analysis
Hello,
I tried to use urca package (R) for cointegration analysis. The data
matrix to be investigated for cointegration contains 8 columns
(variables). Both procedures, Phillips & Ouliaris test and Johansen's
procedures give errors ("error in evaluating the argument 'object' in
selecting a method for function 'summary'" respectiv "too many
variables,
2010 Nov 27
4
Combind two different vector
Hi
I'm trying two combine two vectors that have different lengths. This without
recursive the shorter one. E.g.,
a <- seq(1:3)
b <- seq(1:6)
Thanks in advance
Serdar
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2012 Jul 10
3
Need HELP: how find and use a csv file?
Hey,
I am having some problems with importing a csv file into R and then saving it for analyzing.
I got a csv file ( skater.csv) which i could read by typing: read.csv(file="/Users/kama/Desktop/skatter.csv", header=TRUE, sep=";")
However, when i enter: skatter.csv<-read.csv("skatter.csv", header=TRUE) i get this message:
Error in file(file,
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 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.
2012 Sep 20
2
VarBrul in R
Several years ago there were R implementations of a socio-linguistics
analysis method called Variable Rule Analysis namely rbrul and r-varb. Both
neither of the sites listed (in the method's WikiPedia page
http://en.wikipedia.org/wiki/Variable_rules_analysis ) appear to be online
any more (one was at UPenn and the other at Indiana). Does anyone know a)
whether the code for either or both of
2008 Nov 14
1
how to plot a variable's histogram in the levels of a second variable(1)
Goodmorning to everyone,
I am trying to create a clustered
barplot for the following 2 variables who have more cases but as an
example i am giving you 10 items:
sex聽 socio-economic status
1聽聽聽聽 1
2聽聽聽聽 2
2聽聽聽聽 2
2聽聽聽聽 3
2聽聽聽聽 2
1聽聽聽聽 4
1聽聽聽聽 1
1聽聽聽聽 1
2聽聽聽聽 3
2聽聽聽聽 1
where sex: 1:man, 2:woman
聽聽聽聽聽聽聽聽聽聽 socio-economic status:1:Low, 2:Medium, 3:High, 4:Very High
Does anybody came across with a
2008 Nov 13
1
how to plot a variable's histogram in the levels of a second variable
Goodevening to everyone,
I am trying to create a clustered barplot for the following 2 variables who have more cases but as an example i am giving you 10 items:
sex聽 socio-economic status
1聽聽聽聽 1
2聽聽聽聽 2
2聽聽聽聽 2
2聽聽聽聽 3
2聽聽聽聽 2
1聽聽聽聽 4
1聽聽聽聽 1
1聽聽聽聽 1
2聽聽聽聽 3
2聽聽聽聽 1
where sex: 1:man, 2:woman
聽聽聽聽聽聽聽聽聽聽 socio-economic status:1:Low, 2:Medium, 3:High, 4:Very High
Does anybody came across with
2009 Mar 10
0
Tony Hawk 3 crashes on start
Installation is slow but works configuration also seems to work but CD check doesn't so I did what was necessary (to avoid saying something else...) but, when I start the game, I have the same problem than this german guy had :
2010 May 07
2
Package RPostgreSQL : Problem with dbWriteTable
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Nom : non disponible
URL : <https://stat.ethz.ch/pipermail/r-help/attachments/20100507/f5128631/attachment.pl>
2011 Apr 14
1
Tony Hawk's Pro Skater 2 - keyboard input seems to hang?
Hello,
I installed wine from the Ubuntu Lucid repositories (wine-1.2.2) and successfully installed THPS2.
But after I launch the game, I cannot navigate leftwards in the menu. In other menus the selected item scrolls down (like when a button on a console controller is stuck).
With some trouble I can get into a skate session, which runs perfectly, but my skate character keeps on turning left
2006 Oct 12
0
Cannot conect LDAP to Kerberos
I'm trying to set up my ldap directory to use kerberos passwords. I have
compiled openldap with --with-kpasswd, added the principal
ldap/iceage.sg.org.br@SG.ORG.BR to kerberos. Also, I have prepared the user
entries in LDAP with these fields (in addition to other ones):
objectClass: krb5Principal
krb5PrincipalName: diego@SG.ORG.BR
cn: Diego Lima
userPassword: {KERBEROS}diego@SG.ORG.BR
I
2020 Mar 10
2
Quota plugin and director
Hello dovecot!
I administer a dovecot installation with 30k users. I've got 4 dovecot directors as frontend
and 10 backends.
The mailbox are now in maildir format, with maildir++ quota, on a shared netapp filer.
Indexes are local on each backend.
I'm reconfiguring the quota plugin: as a first step, I want to use the clone plugin to keep a
copy of the quota on a redis database. Next,
2016 Apr 28
2
Package to work with weight based data
Respected all,
I am working on a socio-economic survey (named as
National Sample Survey in India provided by National Sample Survey
Organization, Govt. of India) data of individual as well as households.
This is a sample survey where stratified random sapling method has been
used to draw samples. The data set uses 'weights' to estimate figures for
region, state or