.com/gfkfernsehforschung
Torsten Hothorn <[EMAIL PROTECTED]>
19.04.2007 14:46
Bitte antworten an
[EMAIL PROTECTED]
An
Florian Koller-Meinfelder <[EMAIL PROTECTED]>
Kopie
r-help@stat.math.ethz.ch
Thema
Re: [R] "tree-ID" in any segmentation package available?
On Thu, 1
On Thu, 19 Apr 2007, Florian Koller-Meinfelder wrote:
Dear R-helpers,
I am looking for a segmentation package that gives some "tree identifier"
as output for every observation in the data set (my response variable is
binary). I have skimmed through "rpart", "ada" and "adabag": The output
"tree
Dear R-helpers,
I am looking for a segmentation package that gives some "tree identifier"
as output for every observation in the data set (my response variable is
binary). I have skimmed through "rpart", "ada" and "adabag": The output
"trees" gives you the formula, but I have to run several tho
This is a function of your data and the tuning parameters you chose to
use. See ?tree.control.
On Tue, 20 Feb 2007, stephenc wrote:
> Hi
>
> I am trying to use tree() to classify movements in a futures contract. My
> data is like this:
>
> diff dip dim
Hi
I am trying to use tree() to classify movements in a futures contract. My
data is like this:
diff dip dim adx
1 0100.08650.100.0
2 0 93.185402044.5455 93.18540
3 0 90.309951549.
Hi,
I am looking forward if some of you could help me with this. I have been
looking R-functions to conduct tree-ring analysis in R. I know that exists
a COFECHA version in R developed by C. Bigler. But I don't know if is there
another collection of functions to do dendroclimatological analysi
I'm using classification trees for the first time.
I understand the difference between these 2 packages, but I'm having a
bit of trouble interpreting the results.
I have 3 different response variables, but I'll only use 1 in this
discussion.
I first ran Tree. I was happy with the results, 6
tom wright <[EMAIL PROTECTED]> writes:
> I'm trying to create an app using TclTk and R
> Can someone please explain how I bind a click event to the tree widget
> (http://bioinf.wehi.edu.au/~wettenhall/RTclTkExamples/TreeWidget.html)
> Ideally I'd like to bind to particular elements in the tree but
I'm trying to create an app using TclTk and R
Can someone please explain how I bind a click event to the tree widget
(http://bioinf.wehi.edu.au/~wettenhall/RTclTkExamples/TreeWidget.html)
Ideally I'd like to bind to particular elements in the tree but tkbind
doesnt seem to work.
thanks
tom
__
Hi People!
Have someone package with: Tree Structured Survival Analysis in R?
Thanks in advance
Bernardo Rangel Tura, MD, MSc
National Institute of Cardiology Laranjeiras
Rio de Janeiro Brazil
--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
___
> "DFARRAR" == DFARRAR <[EMAIL PROTECTED]>
> on Sun, 5 Dec 2004 22:09:02 -0500 writes:
DFARRAR> I am trying to store a couple numbers for each
DFARRAR> partition, in a subset of the partitions of my data
DFARRAR> set. Of course, one can accomplish this using a
DFARRAR
DFARRAR vt.edu> writes:
:
: I am trying to store a couple numbers for each partition, in a subset of the
: partitions
: of my data set. Of course, one can accomplish this using a binary tree.
(The
: first split is on
: inclusion/exclusion of the first object, and so on.) I can probably
TECTED]
> Subject: [R] tree class in R?
>
>
> I am trying to store a couple numbers for each partition, in
> a subset of the
> partitions
> of my data set. Of course, one can accomplish this using a
> binary tree. (The
> first split is on
> inclusion/ex
I am trying to store a couple numbers for each partition, in a subset of the
partitions
of my data set. Of course, one can accomplish this using a binary tree. (The
first split is on
inclusion/exclusion of the first object, and so on.) I can probably simulate
a tree using
vectors. (One ve
Martin Maechler wrote:
"ZKala" == Kalaylioglu, Zeynep (IMS) <[EMAIL PROTECTED]>
on Fri, 15 Oct 2004 15:52:11 -0400 writes:
ZKala> Hi There is something weird going on with the "tree"
ZKala> package version 1.0-16. So I want to download an
ZKala> updated tree package. I found that R
> "ZKala" == Kalaylioglu, Zeynep (IMS) <[EMAIL PROTECTED]>
> on Fri, 15 Oct 2004 15:52:11 -0400 writes:
ZKala> Hi There is something weird going on with the "tree"
ZKala> package version 1.0-16. So I want to download an
ZKala> updated tree package. I found that R website h
Kalaylioglu, Zeynep (IMS) wrote:
Hi
There is something weird going on with the "tree" package version
1.0-16.
So I want to download an updated tree package. I found that R website
has version 1.0-18. I want to try this one and see how the tree
algorithm is performing.
What is the best way to downlo
Hi
There is something weird going on with the "tree" package version
1.0-16.
So I want to download an updated tree package. I found that R website
has version 1.0-18. I want to try this one and see how the tree
algorithm is performing.
What is the best way to download tree package version 1.0-18 wh
> From: Ute
>
> Hello,
>
> I'm doing classification with random Forest using numeric predictor
> variables. I would like to know a detail in the tree architecture: to
> which side of a node data are sent if , for the split variable, their
> value is higer than the split point?
The right, as o
Hello,
I'm doing classification with random Forest using numeric predictor
variables. I would like to know a detail in the tree architecture: to
which side of a node data are sent if , for the split variable, their
value is higer than the split point?
best regards,
Ute Müller
__
data as binary factors with the chosen split points. I don't want to
have three level or more factors.
For example, the following shows that the first split is with Petal.Length
splitting at 2.45; however, there are other splits of Petal.Length at
4.95. I want to disallow that.
R> data
Hello
I'm currently using Monte Carlo techniques to estimate prices (variable not
static) from the following type of data:
1,22,40,22,33,5,2000
3,45,33,6,7,0,3000
22,22,33,44,55,66,7
Each row is a record from group A and the cells in all b
On Tue, 9 Sep 2003, Tord Snall wrote:
> Dear all,
>
> I've used glm(family=binomial(link="logit")) several times, but now I think
> that a log link is more appropriate.
>
> I want to fit a model for probability of tree fall (TF)), with tree
> diameter (dbh) and soil moisure (soil) as predictors. A
Dear all,
I've used glm(family=binomial(link="logit")) several times, but now I think
that a log link is more appropriate.
I want to fit a model for probability of tree fall (TF)), with tree
diameter (dbh) and soil moisure (soil) as predictors. A large number of
trees have been checked every sec
Use "pretty" option in "text" function:
plot(mytree)
text(mytree, pretty=0)
> -Original Message-
> From: Peter Flom [mailto:[EMAIL PROTECTED]
> Sent: Friday, July 18, 2003 3:21 PM
> To: [EMAIL PROTECTED]
> Subject: [R] Tree question with ordinal IV
Hi
I have a tree, created in rpart. One of the IVs is an ordinal
variable. I would like to get the splits labeled with the LEVELS of
this factor, rather than a,b,c, and d.
Is there a way to do this?
Thanks in advance
Peter L. Flom, PhD
Assistant Director, Statistics and Data Analysis Core
You guys are fast!
Several people pointed out that the tree method is insenstive to
monotone transforms of the independent variables, not the dependent
variable
Thanks
Peter
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From: Peter Flom [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, July 15, 2003 2:44 PM
> To: [EMAIL PROTECTED]
> Subject: [R] Tree question
>
>
> I was under the impression that the tree method (e.g. as
> implemented in
> rpart) was insensitive to monotonic transformations o
I was under the impression that the tree method (e.g. as implemented in
rpart) was insensitive to monotonic transformations of the dependent
variable. e.g. Breiman Olshen et al. Classification and Regression
Trees state "In a standard data structure [a tree] is invariant under
all monotone transf
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