Displaying 20 results from an estimated 20 matches for "partykit".
2009 Aug 25
1
Partykit Document
Hi All,
I'm a newcomer to the R community, just started learning R. I need
to use partykit for developing CART. But I'm not getting any document/help
for using partykit/rpart.
http://www.agrocampus-ouest.fr/math/useR-2009/slides/Hothorn+Zeileis.pdfgives
some example, but it doesn't tell how my own data should be formatted
so that it can be accepted by partykit.
Example,
data(&qu...
2011 Oct 03
0
`partykit': A Toolkit for Recursive Partytioning
New package `partykit': A Toolkit for Recursive Partytioning
The purpose of the package is to provide a toolkit with infrastructure for
representing, summarizing, and visualizing tree-structured regression and
classification models. Thus, the focus is not on _inferring_ such a
tree structure from data but to _repre...
2011 Oct 03
0
`partykit': A Toolkit for Recursive Partytioning
New package `partykit': A Toolkit for Recursive Partytioning
The purpose of the package is to provide a toolkit with infrastructure for
representing, summarizing, and visualizing tree-structured regression and
classification models. Thus, the focus is not on _inferring_ such a
tree structure from data but to _repre...
2009 Nov 20
1
ctree (party) changing font sizes in plots
When plotting Binary Trees (ctree) from the party package, is there a
way to adjust the font sizes of the leaves?
require(party)
irisct <- ctree(Species ~ ., data = iris)
plot(irisct)
I want to adjust the font sizes for "Node 2", "Node 5", etc. I'd also
like to be able to adjust the font sizes for the x-axis and y-axis
labels of the histograms.
Thanks,
2016 Apr 13
4
Decision Tree and Random Forrest
Ah yes I will have to use the predict function. But the predict function
will not get me there really. If I can take the example that I have a
model predicting whether or not I will play golf (this is the dependent
value), and there are three independent variables Humidity(High, Medium,
Low), Pending_Chores(Taxes, None, Laundry, Car Maintenance) and Wind (High,
Low). I would like rules like
2020 May 20
1
quantile() type 1 for some ordered factors in R-devel
Hi Kurt,
Thank you for fixing quantile(). However, do you think c.factor() can
potentially break more functions? For example, with this new change,
classification from the partykit package using predict() comes back NA
because of this:
https://github.com/cran/partykit/blob/597245ef3dfc98411ce919b74c68ba565f077c47/R/party.R#L500
I understand that most of the fixes will probably be simple with
as.numeric() or as.integer(), but tracing down these breaks can be
time-consuming &...
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
2009 Feb 27
0
[SoC09-Idea] Party On!
...d be predicted in each leaf of an rpart tree.
Similarly, implementations of new tree algorithms might also require new
infrastructure if they have features not available in the above-mentioned
packages, e.g., multi-way splits or more complex models in the leafs.
To overcome these difficulties, the partykit package has been started on
R-Forge. It is still being developed but already contains a stable class
"party" for representing trees. It is a very flexible class with unified
predict(), print(), and plot() methods, and can, in principle, capture
all trees mentioned. But going beyond that,...
2011 Nov 13
1
libary(Rweka) J48 design tree
Hello everybody
I'm having some difficulties to design the decision tree algorithm J48.
I am using the following code and when I run it gives me the following
message
plot(m1)
Error in plot.Weka_tree(m1) :
Plotting of trees with multi-way splits is currently not implemented.
#The code
library(RWeka)
library(randomForest)
library(party)
if(require(mlbench, quietly = TRUE) &&
2009 Sep 22
3
problem using KLdiv - flexmix
I am receiving the following error while executing KLdiv method:
kl<-KLdiv(y)
Error in function (classes, fdef, mtable) :
unable to find an inherited method for function "KLdiv", for signature
"data.frame"
the code is as follows:
require(flexmix)
KLdiv(y)
the object y (snippet, actual object contains 188 entries) is as follows:
s1p5 s2p5
1 0.6 0.8
2 0.8
2020 May 18
3
quantile() type 1 for some ordered factors in R-devel
Hi,
In R-devel (2020-05-17 r78478) quantile() type 1 seems to behave a little
bit strange for some ordered factors:
quantile(factor(1:3, ordered = TRUE), 0.5, type = 1)
returns ?2? as expected. But
quantile(factor(2:4, ordered = TRUE), 0.5, type = 1)
returns ?4? and
quantile(factor(3:5, ordered = TRUE), 0.5, type = 1)
returns ?NA?. Furthermore, the function returns ?NA? for calls like
2009 Sep 03
1
Party plots
I'm pretty new to R, and not much of a progammer (yet). I'm having trouble
navigating the graphical output for the party algorithm. Essentially, my
tree is too large for the default page size so the nodes overlap and obscure
one another. Anybody know how to change the plot parameters to either:
1) enlarge the page size so the default font fits comfortably
(preferred);
2)
2009 Sep 24
0
problem in forcing variables in CART
Hai
Can someone tel me whether it is possible to force in Variables at various
levels of the tree in CART. I have been using RPART for CART which comes
with PARTYKIT package (is this package good for CART or is there any other
better package?). I am facing a problem with the tree it generates, it picks
up variables which don''t make much sense. I want it to pick up few vars at
few levels. Can someone please help me out in this regard.
Its urgent....
2011 Nov 18
2
Export Tree for latex
Hello everybody.
I'm trying to send the result of a decision tree for latex, but I do not
get with the package(xtable), there is a package that make this export
Export this for latex
marital.status = Divorced
| educational.num <= 12: <=50K (1795.0/90.0)
| educational.num > 12
| | hours.per.week <= 41: <=50K (302.0/58.0)
| | hours.per.week > 41
| | |
2012 Mar 04
1
rpart package, text function, and round of class counts
I run the following code:
library(rpart)
data(kyphosis)
fit <- rpart(Kyphosis ~ ., data=kyphosis)
plot(fit)
text(fit, use.n=TRUE)
The text labels represent the count of each class at the leaf node.
Unfortunately, the numbers are rounded and in scientific notation rather
than the exact number of examples sorted by that node in each class.
The plot is supposed to look like
2011 Apr 08
4
Rpart decision tree
Dear useRs:
I try to plot an rpart object but cannot get a nice tree structure plot. I
am using plot.rpart and text.rpart (please see below) but the branches that
connect the nodes overlap the text in the ellipses and rectangles. Is there
a way to get a clean nice tree plot (as in the Rpart Mayo report)? I work
under Windows and use R2.11.1 with rpart version 3.1-46.
Thank you.
Tudor
...
2017 Jun 13
2
Classification and Regression Tree for Survival Analysis
I am trying to use the CART in a survival analysis. I have three variables of interest (all 3 ordinal - x, y and z, each of them with 5 categories) from which I want to make smaller groups (just an example 1st category from X variable with the 2nd and 3rd categories from the Y category and 2, 3 and 4 categories from the Z category etc) based on their, let's say, association with mortality.
Now
2012 Oct 31
1
party tree coordinates
I'm hoping that folks out there with expertise in working with the party
package can help me out here. My team is trying to convert party tree
output into a text file format that can be read by our image processing
software. We are running into difficulties because the way the two
different programs identify their nodes is different.
R numbers it's nodes 1, 2, 3, 4, 5, 6 etc. down the
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
2012 Apr 15
6
CRAN (and crantastic) updates this week
CRAN (and crantastic) updates this week
New packages
------------
* disclapmix (0.1)
Maintainer: Mikkel Meyer Andersen
Author(s): Mikkel Meyer Andersen and Poul Svante Eriksen
License: GPL-2
http://crantastic.org/packages/disclapmix
disclapmix makes inference in a mixture of Discrete Laplace
distributions using the EM algorithm.
* EstSimPDMP (1.1)
Maintainer: Unknown
Author(s):