Displaying 20 results from an estimated 1000 matches similar to: "rpart: ID3 or C4.5?"
2009 May 27
1
C4.5 implementation in R
Greetings,
Does anyone know if the C4.5 algorithm is already implemented in R? If yes,
please let me know the package. Thanks.
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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
2001 Dec 02
0
decision tree C4.5
Hello,
exist an implementation of DecisionTree Algorithms
C4.5 from Quinlan in R which extract ruleSets for Classification Problems?
I found "only" the packages tree and rpart which use other algorithms !
thanks & regards,
christian
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2002 Apr 16
6
Classification Analysis
Hi everyone,
Could somebody explain to me what is the package/function for
classification analysis. I am performing analysis of music files in the form
of MIDI files. I end up with about 750 dependent variables from the
analysis, I also have a number of independent/grouping variables that I set
manually. What I would like is to be able to predict which group a
particular MIDI files belongs to
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
2010 Oct 12
6
Rpart query
Hi,
Being a novice this is my first usage of R.
I am trying to use rpart for building a decision tree in R. And I have the
following dataframe
Outlook Temp Humidity Windy Class
Sunny 75 70 Yes Play
Sunny 80 90 Yes Don't Play
Sunny 85 85 No Don't Play
Sunny 72 95 No Don't Play
Sunny 69 70 No Play
Overcast 72 90 Yes Play
Overcast 83 78 No Play
Overcast 64 65 Yes Play
Overcast 81 75
2007 Jun 28
3
Vim differences between C4 and C5
I have installed CentOS 4.5 and 5 on 2 separate machines, and both have
default installs of vim-enhanced on each of them.
I noticed that I can get syntax highlighting as a regular user, sudo and
as root in C4.5. In C5 I only get highlighting as a regular user.
I diff'ed my /etc/vimrc files between each install there is no changes
and neither root ~ has a .vimrc file.
I had put "# vim:
2010 Sep 26
4
How to update an old unsupported package
Hi all,
I have a package that is specific to a task I was repetitively using a
few years ago.
I now needed to run it again with new data.
However I am told it was built with an older version or R and will not work.
How can I tweak the package so it will run on 11.1?
It was a one-off product and has not been maintained.
Is there a way to "unpackage" it and repackage it to work?
I
2010 Apr 23
3
Practical work with logistic regression
Dear all,
I have a couple of short noob questions for whoever can take them. I'm
from a very non-stats background so sorry for offending anybody with
stupid questions ! :-)
I have been using logistic regression care of glm to analyse a binary
dependent variable against a couple of independent variables. All has
gone well so far. In my work I have to compare the accuracy of
analysis to a C4.5
2005 Apr 21
1
lda (MASS)
hi!
this is a question about lda (MASS) in R on a particular dataset.
I'm not a specialist about any of this but:
First with the well-known "iris" dataset, I tried using lda to discriminate
versicolor from the other to classes and I got approx. 70% of accuracy
testing on train set. In iris, versicolor stands "between" the 2 other so
one can expect lda not to perform well
2013 Mar 23
1
LOOCV over SVM,KNN
Good afternoon.
I would like to know if there is any function in R to do LOOCV with these
classifiers:
1)SVM
2)Neural Networks
3)C4.5 ( J48)
4)KNN
Thanks a lot!
[[alternative HTML version deleted]]
2013 Apr 04
1
Extract the accuracy of 10-CV
Hello guys!
I am working with some classifiers ( SVM,C4.5,RNA,etc) using 10-C.V.
Once I have the model of each one, I make the validation of these models in
one dataset. Then,with my model and the dataset, I extract a confusion
matrix to know the capacity of prediction from the model. And finally, I
extract the accuracy of this prediction based on the diagonal from the
confusion matrix.
The
2002 May 07
2
Discretization of numeric attributes
Dear R-helpers:
I am interested in discretization methods for numerical attributes, as they
are reported in the 'machine learning' community. For example, the work of
Fayyad & Irani (IJCAI-93), Kononenko, entropy-based approaches, MDL
principle, the C4.5 approach, etc. I am especially interested in those
methods that take a factor as goal target into account for discretizing
2008 Jul 09
0
CESA-2008:0583 Important CentOS 4 s390(x) openldap - security update
CentOS Errata and Security Advisory 2008:0583
https://rhn.redhat.com/errata/RHSA-2008-0583.html
The following updated files have been uploaded and are currently
syncing to the mirrors:
s390:
updates/s390/RPMS/compat-openldap-2.1.30-8.c4.5.s390.rpm
updates/s390/RPMS/openldap-2.2.13-8.c4.5.s390.rpm
updates/s390/RPMS/openldap-clients-2.2.13-8.c4.5.s390.rpm
2008 Jun 03
0
CentOS-announce Digest, Vol 40, Issue 1
Send CentOS-announce mailing list submissions to
centos-announce at centos.org
To subscribe or unsubscribe via the World Wide Web, visit
http://lists.centos.org/mailman/listinfo/centos-announce
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centos-announce-request at centos.org
You can reach the person managing the list at
centos-announce-owner at centos.org
When
2008 Jun 02
0
CESA-2008:0288 Critical CentOS 4 s390(x) samba - security update
CentOS Errata and Security Advisory 2008:0288
https://rhn.redhat.com/errata/RHSA-2008-0288.html
The following updated files have been uploaded and are currently
syncing to the mirrors:
s390:
updates/s390/RPMS/samba-3.0.25b-1.c4.5.s390.rpm
updates/s390/RPMS/samba-client-3.0.25b-1.c4.5.s390.rpm
updates/s390/RPMS/samba-common-3.0.25b-1.c4.5.s390.rpm
2013 Apr 25
1
C50 package in R
Hi All,
I am trying to use the C50 package to build classification trees in R. Unfortunately there is not enought documentation around its use. Can anyone explain to me - how to prune the decision trees?
Regards,
Indrajit
[[alternative HTML version deleted]]
2008 Mar 17
4
VNC authentication failures to windows HVM
I''ve set xend service properties as follows:
config/vnc-listen astring \''0.0.0.0\''
config/vncpasswd astring \''vnc\''
config/default-nic astring ''nge1''
but I get an authentication error whenever I try to connect to the
console with
''vncviewer :0'' - I''m on the xvm host itself.
other relevant data:
SunOS
2008 Feb 27
0
CESA-2008:0161 Important CentOS 4 s390(x) cups - security update
CentOS Errata and Security Advisory 2009:0161
https://rhn.redhat.com/errata/RHSA-2008-0161.html
The following updated files have been uploaded and are currently
syncing to the mirrors:
s390:
updates/s390/RPMS/cups-1.1.22-0.rc1.9.20.2.c4.5.s390.rpm
updates/s390/RPMS/cups-devel-1.1.22-0.rc1.9.20.2.c4.5.s390.rpm
updates/s390/RPMS/cups-libs-1.1.22-0.rc1.9.20.2.c4.5.s390.rpm
s390x:
2008 Jul 09
0
CESA-2008:0583 Important CentOS 4 ia64 openldap - security update
CentOS Errata and Security Advisory 2008:0583
https://rhn.redhat.com/errata/RHSA-2008-0583.html
The following updated files have been uploaded and are currently
syncing to the mirrors:
ia64:
updates/ia64/RPMS/compat-openldap-2.1.30-8.c4.5.ia64.rpm
updates/ia64/RPMS/openldap-2.2.13-8.c4.5.ia64.rpm
updates/ia64/RPMS/openldap-clients-2.2.13-8.c4.5.ia64.rpm