Displaying 20 results from an estimated 500 matches similar to: "ppls: version 1.02 including a new data set"
2007 Oct 09
0
new package ppls
A new package ppls is now available on CRAN.
The ppls package implements penalized Partial Leasts Squares (PLS). In a
nutshell, supervised dimensionality reduction via PLS is combined with
penalization techniques. Features of the package include
* estimation of linear regression models with penalized PLS,
* estimation of generalized additive models with penalized PLS based on
splines
2007 Oct 09
0
new package ppls
A new package ppls is now available on CRAN.
The ppls package implements penalized Partial Leasts Squares (PLS). In a
nutshell, supervised dimensionality reduction via PLS is combined with
penalization techniques. Features of the package include
* estimation of linear regression models with penalized PLS,
* estimation of generalized additive models with penalized PLS based on
splines
2010 Jan 06
0
parcor 0.2-2 - Regularized Partial Correlation Matrices with (adaptive) Lasso, PLS, and Ridge Regression
Dear R-users,
we are happy to announce the release of our R package parcor.
The package contains tools to estimate the matrix of partial
correlations based on different regularized regression methods: Lasso,
adaptive Lasso, PLS, and Ridge Regression. In addition, parcor provides
cross-validation based model selection for Lasso, adaptive Lasso and
Ridge Regression.
More details can be found
2010 Jan 06
0
parcor 0.2-2 - Regularized Partial Correlation Matrices with (adaptive) Lasso, PLS, and Ridge Regression
Dear R-users,
we are happy to announce the release of our R package parcor.
The package contains tools to estimate the matrix of partial
correlations based on different regularized regression methods: Lasso,
adaptive Lasso, PLS, and Ridge Regression. In addition, parcor provides
cross-validation based model selection for Lasso, adaptive Lasso and
Ridge Regression.
More details can be found
2011 Mar 22
1
In ppls package kernel method is unsupported?
require(ppls)
data(BOD)
X<-BOD[,1]
y<-BOD[,2]
Xtest=seq(min(X),max(X),length=200)
dummy<-X2s(X,Xtest,deg=3,nknot=20)
Z<-dummy$Z
Ztest<-dummy$Ztest
size<-dummy$sizeZ
P<-Penalty.matrix(size,order=2)
lambda<-200
number.comp<-3
penalized.pls(Z,y,P=lambda*P,ncomp=number.comp)$coefficients # By default
kernel=F
2002 Oct 14
2
possible memory leak in 1.6 (PR#2160)
Full_Name: Anne-Laure Boulesteix
Version: 1.6.0
OS: Linux
Submission from: (NULL) (141.84.161.156)
Hi,
I noticed the following problem with 1.6.0 (which was not present in 1.5.1):
I work with very large datasets and encountered a problem with memory
allocation,
(probably a memory leak). I wrote a programm with a loop. In this loop in
each
iteration I create a very large matrix and assign
2017 Aug 12
0
OHPL - new package for group variable selection
Dear useRs,
- I am pleased to announce that the R package OHPL is now available on
CRAN (https://CRAN.R-project.org/package=OHPL).
The package implements the ordered homogeneity pursuit lasso (OHPL)
algorithm for group variable selection proposed in Lin et al. (2017)
<doi:10.1016/j.chemolab.2017.07.004>. The OHPL method exploits the
homogeneity structure in high-dimensional data and enjoys
2017 Aug 12
0
OHPL - new package for group variable selection
Dear useRs,
- I am pleased to announce that the R package OHPL is now available on
CRAN (https://CRAN.R-project.org/package=OHPL).
The package implements the ordered homogeneity pursuit lasso (OHPL)
algorithm for group variable selection proposed in Lin et al. (2017)
<doi:10.1016/j.chemolab.2017.07.004>. The OHPL method exploits the
homogeneity structure in high-dimensional data and enjoys
2011 Jan 12
0
Multivariate autoregressive models with lasso penalization
I wish to estimate sparse causal networks from simulated time series data.
Although there's some discussion about this problem in the literature (at
least a few authors have used lasso and l(1,2) regularization to enforce
sparsity in multivariate autoregressive models, e.g.,
http://user.cs.tu-berlin.de/~nkraemer/papers/grplasso_causality.pdf), I
can't find any R packages with these
2008 Nov 13
2
PLAIN password scheme question
Hi, ppls
There is some problem with using passwd-like file and plaintext
passwords within it.
Let's assume we have users speaking russian. They think and remember
their passwords also within russian words (they just not change
keyboard layout before entering their passwords).
So if the user has password like ":jgf" (meaning "ass" in russian)
and passwords are stored
2005 Jun 02
1
glm with variance = mu+theta*mu^2?
How might you fit a generalized linear model (glm) with variance =
mu+theta*mu^2 (where mu = mean of the exponential family random variable
and theta is a parameter to be estimated)?
This appears in Table 2.7 of Fahrmeir and Tutz (2001) Multivariate
Statisticial Modeling Based on Generalized Linear Models, 2nd ed.
(Springer, p. 60), where they compare "log-linear model fits to
2006 Feb 01
1
glm-logistic on discrete-time methods with individual and aggregated data
Dear R-Users,
without going into details I tried to prepare a simple example to show
you where I would need help.
In particular I prepare two examples-template for a study I'm conduction
on discrete-time methods for survival analysis.
Each of this example has two datasets which are basically equal, with
the exception that in the former one has individual data and in the
latter one aggregated
2005 Jul 22
0
useR! 2006
We are happy to announce that the second R user conference
useR! 2006
is scheduled for June 15-17 2006 and will take place at the Vienna
University of Economics and Business Administration.
This second world-meeting of the R user community will focus on
- R as the `lingua franca' of data analysis and statistical computing,
- providing a platform for R users to
2005 Jul 22
0
useR! 2006
We are happy to announce that the second R user conference
useR! 2006
is scheduled for June 15-17 2006 and will take place at the Vienna
University of Economics and Business Administration.
This second world-meeting of the R user community will focus on
- R as the `lingua franca' of data analysis and statistical computing,
- providing a platform for R users to
2007 Oct 01
0
Interpretation of residual variance components and scale parameters in GLMMs
Dear R-listers,
I am working with generalized linear mixed models to quantify the
variance due to two nested random factors, but have hit a snag in the
interpretation of variance components. Despite my best efforts with
Venables & Ripley 2002, Fahrmeir & Tutz 2001, R-help archives, Google,
and other eminent sources (i.e. local R gurus), I have not been able
to find a definitive answer
2003 Aug 21
2
Re: Some questions about Asterisk and reliability
Gabe Bourque wrote:
> Hello Anton Tinchev,
>
> I'm writing to you in hopes you can answer a few questions regarding
> Asterisk/Digium and it's reliability. I saw your posting in the
> Asterisk mailing list (Re: [Asterisk-Users] Is Asterisk ready for "real"
> use?) and decided to write directly to you. The reason being that you
> are one of only a few
2001 Jul 16
2
Songs stopping early on my player
I suspect the stopping behaviour is my mishandling of either OV_EBADLINK or
OV_HOLE.
What should I be doing if either of these values are returned by ov_read?
Having experimented more Winamp has no trouble with the "jerky"
songs. But the songs where my player stops prematurely pause for a second or
two in Winamp. And with WMP they continue to play properly, but from the
point where they
2007 Aug 10
16
[OT] Parallels or VMWare?
I''m looking to get parallels or vmware for my imac. Wondering what ppls
opinions are.
Besides web broswers I need to run some windows only stuff, and wondering
about running MS Office
Opinions?
Thanx
Daniel
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group.
To post to
2000 Jan 13
0
The Array Programming Languages Conference APL-Berlin-2000
Hello!
The Array Programming Languages Conference will be from
24th - 27th July 2000
Please look at:
http://stat.cs.tu-berlin.de/APL-Berlin-2000/
Chairman's Address
APL Berlin 2000 will take place in a city which is worth a visit even
without array processing languages. There is a fortunate coincidence:
Much activity in scientific and commercial institutions is based on such
languages.
2005 Jun 04
2
glm with a distribution free family
Dear R users,
I am trying to fit a glm with a distribution free family, link = log and variance = constant*mu. I guess I have to use the quasi family but the choices of variance are restricted to constant or mu or mu^2..., I don't know the way to choose the variance that I need, i.e. constant*mu.
If you have any ideas or advice, please tell me.
Thanks,
Laetitia Mestdagh
Laetitia Mestdagh