Displaying 20 results from an estimated 3000 matches similar to: "Text Mining with R"
2004 Jul 01
3
BIC vz SBIC vz SIC
DeaRs,
I have a doubt about:
BIC (Bayesian Information Criterion)
SBIC (Schwartz Bayesian Informarion Criterion)
SIC (Schwartz Information Criterion)
In many references these are know as the same (eg. stepAIC() function) but I
just found a SAS8.2 output that show either the BIC and SIC values for a
logistic regression.. simillary values but different.
1) question: What are the differences?
2005 May 23
1
Best configure options for Data Mining
Dears,
I am selecting configure-options for Data Mining applications with R,
notes that guide a user from SVN repository to system compilation on
GNU/Linux system ("gcc" as compiler).
Status:
* My system specs:
- processor Intel 2.8Ghz HT
- kernel Linux 2.6.10-5-686-smp
- ram 1500 Mbyte
* Dataset to use:
- ~900 Mbyte of text file
* R from svn repository (daily updated)
*
2007 Jun 08
1
data mining/text mining?
Dear R-user,
Could anybody tell me of the key difference between data mining and text
mining?
Please make a list for packages about data/text mining.
And give me an example of text mining with R (any relating materials
will be highly appreciated), because a vignette written by Ingo Feinerer
seems too concise for me.
Thanks
_____________________________________________
Dr.Ruixin ZHU
Shanghai
2006 Jul 14
1
party - ctree() - terminal nodes reference for every obs
Dear R.Users,
using ctree() (from "party" library) on a data.frame, I want to append a
column with the references for the groups/segments detected. While these
nodes are easy readable in output, I need a vector for my obs.
Hints?
Cheers
--
Daniele Medri
2006 Feb 20
2
Group a dinamic number of vectors in a data.frame
Hi all,
I need to create a data.frame from a variable number of vectors.
The number of these vectors could change so I need a dinamic way to
group all in a data.frame. The number is length(abc).
e.g. vectors in my workspace
N1 <-c(1,2,3,4)
N2 <-c(1,2,3,4)
N3 <-c(1,2,3,4)
abc <-c(1,2,3)
the data.frame I want to create:
tcm <-data.frame(OneVector, TwoVector,
2002 Jun 12
2
data mining: finding association rules
Dear R-users!
I would like to search for "association rules" (and compute support and
confidence, for example) in a data set, and wonder if this can be done with
R (version 1.5.0 for Windows)?
Particulary, I wonder if
a) anyone has done something like that with R
or
b)maybe someone has written an R-interface to some existing
algorithm/software (e.g. to something like the
2003 Jul 03
1
AID and CHAID: news about?
Dear R-helpers,
I just search if is there something for AID and CHAID in R: one message in
this list (last year) without success and no possibility.
News about? If "no" let's me know because some friends are looking for thesis
and this could be a usefull job.
bye
--
Daniele Medri
2007 Aug 11
1
R Weka and cobweb
Hi,
I never use cobweb before and I'm quite new to this. I have a couple of questions around the cobweb implementation in R Weka. If you could supply answer or insight, I would really appreciate.
1. From Fisher's paper in 1987, it seems that Cobweb only deals with nominal data. In R Weka cobweb, is it allowed to accommodate real/continuous value?
2. My understanding is that Cobweb
2002 Sep 05
7
data mining for R
I was wondering if R had a data mining componant and how i could get it. If not do you know anyone who is developing a datamining "plug in" for R
Phillip Goodreid
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
2011 Sep 14
1
Hints for Data Mining
Dear All,
I am recycling a previous email of mine where I asked some questions
about clustering mixed numerical/categorical data. This time I am more
into data mining. I am given a set of known statistical indexes {s_i},
i=1,2...N for a N countries. These indexes in general are a both
numerical and categorical variables. For each country, I also have a
property x_i whose value is known, but
2004 Jun 09
3
market-basket analysis in R
Hi there fellow R-users,
Does anyone know if there exists a package for associated rules data mining
(market basket analysis) in R.
I have tried searching CRAN but with no luck.
Regards
Wayne
KSS Ltd
Seventh Floor St James's Buildings 79 Oxford Street Manchester M1 6SS England
Company Registration Number 2800886
Tel: +44 (0) 161 228 0040 Fax: +44 (0) 161 236 6305
2003 Dec 15
4
DNS and DHCP setup
Hi,
Does anyone know of a document that gives details on how to set up Bind
9 and DHCPD 3.x so that dns is updated when clients log on?
I saw this is not in the howto collection
(http://www.bibsyst.no/samba/docs/man/DNSDHCP.html#id2981727) so I was
kind of hoping someone else has some notes.
I would be greatfull for any tips and links.
Tarjei
2013 May 12
2
Data mining
Hola, ¿cómo están?
Soy estudiante de Ing. en Sistemas de Información y estoy cursando
la materia Tecnologías para la Explotación de Datos. Me he decidido a usar
R para hacer DM. Estoy recién comenzando con ambos.
El asunto es que no he encontrado la implementación en R de uno de
los algoritmos que dimos para árboles de decisión, ID3. Ya revisé varios de
los paquetes para DM
2005 Feb 07
1
R or weka
Hi, guys:
These days I keep using R and Weka to do data mining. I think my next
step is open the source codes so that I can "customrize them" and make
them better server my purpose. But now I kinda hesitate to do so b/c I
am really not sure which is better to start with. You know, both
require some time and I cannot clone myself to work on both:) If here
are some persons who used both
2004 Mar 08
3
Decision Trees
I am familiar with the rpart and tree packages for classification and
regression trees. However, quite a bit of the research in the
transportation community relating to decision trees uses the C4.5 family of
algorithms by Quinlan. Are there any plans to make a C4.5 (or a derivative
of it) available to R? If not, then I might use the WEKA Java package (
http://www.cs.waikato.ac.nz/ml/weka) that
2004 Jul 12
5
Regular Expressions
Hi,
Is there a way to use regular expressions to capture two or more words in a
sentence? For example, I wish to to find all the lines that have the words "thomas",
"perl", and "program", such as "thomas uses a program called perl", or "perl is a
program that thomas uses", etc.
I'm sure this is a very easy task, I would greatly appreciate
2002 Mar 10
6
Newbie with R
Hello,
I would like to test some learning algorithms (C5.0, or C4.5) using decision trees or neural network.
I didn't find anything in the R documentation for functions to apply on datasets (well, English is not my mother tongue and I have some problems to understand some functions descriptions). Does anybody know where I can find anything about that ?
Thank you very much,
Thomas
2009 Feb 02
1
Event sequence analysis
Dear R help,
I am analyzing sequences of events described by time and a unique event tag. And
I am searching for recurring patterns where patterns have to show up in a
certain time window, e.g. 5 or 10 minutes. Of course, inbetween these events
other events may occur.
I have applied basket analysis approaches like apriori or 'frequent item set'
algorithms with interesting results but
2005 Sep 26
1
Carrier Access - Access Bank I config
Hi,
Is there somebody using an Access Bank I with Asterisk that could
share the secret ingredients needed to make it work ?
I've searched around and found some info, I tryed almost every
configuration possible but I can't seem to find the right combination.
If someone could provide me with the config needed on Asterisk as well
as the dip-switch settings on the channel bank part, I would
2011 Jul 10
1
question about release prm for 6
Hi,
I am running centos x686 and upgraded from 4 to 5 when it came out now I
want to try the same with centos 6 where can I get the centos i686 release
rpm I used does not have the rpm I used any help wood be greatfull
-------------- next part --------------
An HTML attachment was scrubbed...
URL: