Displaying 20 results from an estimated 200 matches similar to: "Calculating Betweenness - Efficiency problem"
2010 Feb 10
3
How to repeat the names?
Dear R helpers
I have a city.csv file as given below.
'city.csv'
city_name1 city_name2
New York City Buffallo
So I define
city_name = read.csv('city.csv')
city1 = city_name$city_name1
city2 = city_name$city_name2
My problem is how do I repeat the names one after other say 10 times i.e. my output should be like
New York
City Buffallo
New York
City
2012 Jul 26
4
Variables in a Tabular form. easily saved in a txt file
Dear all,
I would like to save few variable-names with their values in a tabular form, with that I mean
that files can be printed easily in R in a tabular form and also saved in a ascii file that when one opens it see also the variables in a nice tabular format.
IS that possible? Below a small example of how should look results in R and in a txt file.
Postal Code | Superb
2008 Mar 05
4
vertex labels in igraph from adjacency matrix
I am getting some unexpected results from some functions of igraph and
it is possible that I am misinterpreting the vertex numbers. Eg., the
max betweenness measure seems to be from a vertex that is not connected
to a single other vertex. Below if my code snippet:
require(igraph)
my.graph <- graph.adjacency(adjmatrix = my.adj.matrix, mode=c("undirected"))
most.between.vert <-
2009 Mar 25
1
Weighted Graph Link strength ( I am making mistake please help)
Hello R experts,
I went through R mailing,Nabble R.I could not find solution.Can someone
help me.
I have undirected Graph.
Here is an example of spreadsheet I have( Unique 3559 Nodes)
snippet of 4 rows.
Node1 Node2 Weights
1 2 5
2 3 30
2 4 30
1 4 5
3 4 30
1 3 2
I created a program reading the csv and created a Adjacency matrix.From the
adjacency matrix I created graph.I am not sure the
2013 Jan 28
0
trouble with ldap authentication on centos+openldap
Hi Samba List,
I've been trying to get a samba+ldap working on centos 6.3. I've had
some troubles adapting to the new slapd.d configuration format for the
openldap, which seems unnecassarily complicated. Most of the tutorials
refer to the older style slapd.conf configuration. I was following this
tutorial:
2006 Mar 01
2
Weighted networks and multigraphs
I would like to apply network measures (such as betweenness centrality,
upper boundedness, etc.) to a weighted graph with non-integer weights,
defined by a euclidean distance matrix. The package sna provides the
measures that I want to use, but seems only to operate on binary graphs.
I have read work by Mark Newman
(http://aps.arxiv.org/abs/cond-mat/0407503/), who suggests that a
weighted graph
2013 Feb 01
2
Frustrated with "network name is no longer available"
Nothing fancy, and I've done this before...
but today I'm trying to get samba 3.10.5 with tdbsam working on Centos 6.3.
iptables is stopped on the samba server.
selinux is disabled on the samba server.
service smb and nmb are running.
samba server has an 'a' record on our dns server.
samba server is set to be a wins server.
Note- I have ANOTHER wins server on the same subnet for
2008 Apr 23
0
winbindd hangs up while retreiving users
Hello.
I'm installing new FreeBSD 6.2-RELEASE, based on intel machine. Firewall
type is OPEN.
I have Windows Server 2000 with Active Directory on it, working in Native
mode.
I've installed samba-3.0.23c_2,1 from /usr/ports/net/samba3
prefix=/usr/local
without krb-1.5.1 being installed.
Added:
nmbd_enable="NO"
smbd_enable="NO"
winbindd_enable="YES"
to
2006 Jun 29
1
initializing table and filling it out
Hi everyone,
I'm writting a script that will open multiple files in a single folder and then will do some calculations to finally save everything in a big table.
So here is the pseudo code
#read all files in the given directory
myfiles <-list.files("c:\\myDir")
#initialize table
???
#loop through files
for(f in myfiles[-1]) {
netMat <-
2008 Apr 29
1
winbindd hangs up while retreiving usernames.
Hello.
I'm installing new FreeBSD 6.2-RELEASE, based on intel machine. Firewall
type is OPEN.
I have Windows Server 2000 with Active Directory on it, working in Native
mode.
I've installed samba-3.0.23c_2,1 from /usr/ports/net/samba3
prefix=/usr/local
without krb-1.5.1 being installed.
Added:
nmbd_enable="NO"
smbd_enable="NO"
winbindd_enable="YES"
to
2008 Feb 20
0
igraph package, version 0.5
igraph is a package for graphs and networks. It has a C core and
uses a simple and fast graph representation allowing millions
of vertices and edges.
NEW FEATURES:
- We use the ARPACK library for graph related eigenvalue problems,
like Page Rank calculation, Kleinberg's hub and authority scores,
eigenvector centrality, etc. There is also a generic interface
if someone wants to use
2008 Feb 20
0
igraph package, version 0.5
igraph is a package for graphs and networks. It has a C core and
uses a simple and fast graph representation allowing millions
of vertices and edges.
NEW FEATURES:
- We use the ARPACK library for graph related eigenvalue problems,
like Page Rank calculation, Kleinberg's hub and authority scores,
eigenvector centrality, etc. There is also a generic interface
if someone wants to use
2009 Jul 14
1
Error installing package sna
Dear R-users,
These days, I have been struggling to install the package sna on my Ubuntu
8.04 laptop. My R version is currently R 2.7.2. And I had no trouble
installing any other packages (including network).
However when I run 'install.packages("sna")', compilation of C codes is ok,
but a syntax error is reported when building help pages and sna does not
want to install.
I
2009 Dec 07
1
igraph plot - vertex colors
Hi everyone,
I have successfully created and analyzed my network data. I am new to R, and Network Analysis too, but I want to color my vertex based on some of the centrality measures calculated.
Can someone point me in the right direction? Again, I am new to R, but given how powerful R appears to be, I figure this is probably pretty easy to do, I just wish I could figure it out.
Many thanks
2012 Jun 18
0
igraph 0.6 released
Dear All,
we have released version 0.6 of the igraph package today. This is a
major new version, with a lot of new features, and (sadly) it is not
completely compatible with code that was written for the previous
igraph versions. (See "Major new features" below for details.)
I have included below a list of (bigger) changes. Please see the
details in the release notes and the NEWS
2012 Jun 18
0
igraph 0.6 released
Dear All,
we have released version 0.6 of the igraph package today. This is a
major new version, with a lot of new features, and (sadly) it is not
completely compatible with code that was written for the previous
igraph versions. (See "Major new features" below for details.)
I have included below a list of (bigger) changes. Please see the
details in the release notes and the NEWS
2011 May 23
0
SNA query
Hi R Users
I am working with the very useful SNA package (v.2.2) in R and have a
query I hope you may be able to help out with:
I have been using gplot commands to plot an SNA graph. Here's the code
and output:
library(sna); library(network); library(RODBC)
setwd("c:\\temp")
x = read.csv(file = "testforr.csv")
Total.Sold=c(1,3,6,1,3,6,1,3,6,6,9)
src=c(1:10,1)
2004 Jun 11
6
phone calls betweens phones behind the same nat
Hi,
I have the following problem.
I have 5 phones behind the same nat (canreinvite=yes). it works fine to
receive calls and to make calls. sound quality is good, so everything
works fine.
The poblem is that the phone behind nat cant call each other. It works
if canreinvite=no. But i want to do this.
Does anyone have an idea?
Regards,
cjk.
2008 May 27
1
How to restrict winbindd to access trusted domains objects.
Greetings.
I've already done with question at
http://lists-archives.org/samba/37558-winbindd-hangs-up-while-retreiving-usernames.html
and made decision, that winbindd tries to get users and groups in trusted
domains.
We have tree different domains in their forests, connected by trusted
relationships:
CITY-XXI.INT < - > DEP2.CITY-XXI.INT
DEP2.CITY-XXI.INT < - > ALL.INT
2009 Mar 05
0
Undirected to Directed Graph ( Clustering Based on Link Strength)
Hello All,
I went through lot of searching for papers to do clustering on
Co-Authroship.I ran SNA metrics on my Undirected
Graph(betweenness,Closeness,Eigen Vector) using R.
After running the sna Metrics I found important nodes and did clustering on
those nodes based on Binding strength .This clustering is done through if
they are connected.I would like to do clustering based on Weight of the