Displaying 20 results from an estimated 10000 matches similar to: "FW: Best R package for Finite Mixture Models or Latent Class Models"
2007 Nov 08
1
finite mixture model (or latent class)
Dear Listers,
My post might be somewhat OT.
Currently, I am trying to use flexmix to build a finite mixture model.
For instance, I am getting the prior probability and coefficients for
each latent class from training data. Is there a way to get the
posterior probablity and prediction of a new dataset?
What I am thinking is to apply the prior prob and coefficient from
training set to testing data
2006 Mar 21
0
finite mixture model, using flexmix
Dear R-users,
I would like to use the package flexmix to fit latent classes to a
regression model. My data are repeated measurements of bernouilli
variables so I can use the binomial family link to the glm function. The
design is not balanced, meaning that for some individuals in my data set
I have 10 measurements or more, for others I only have 5 or even less.
My question is the following. Can
2011 Feb 28
1
mixture models/latent class regression comparison
Dear list,
I have been comparing the outputs of two packages for latent class
regression, namely 'flexmix', and 'mmlcr'. What I have noticed is that
the flexmix package appears to come up with a much better fit than the
mmlcr package (based on logLik, AIC, BIC, and visual inspection). Has
anyone else observed such behaviour? Has anyone else been successful
in using the mmlcr
2012 Jun 14
2
finite mixture modeling
Hi all,
I have a question, is there any R package dealing with latent transition analysis with both categorical and continuous indicators? So far what I found from GOOGLE are only packages dealing with latent class analysis. So what about the longitudinal situation? Any way we could look at the transition from one class to another across time points?
Thank you very much.
ya
[[alternative
2005 Jul 08
1
Finite Mixture Models with logistic regression
Do we have any R package that can do analysis on finite mixture model with
logistic regression? Thanks
Faith
Feng Gao
Dept. of Statistics
Virginia Tech.
Email: fgao at vt.edu
2011 Feb 02
2
clustering with finite mixture model
Dear R-help,
I am doing clustering via finite mixture model. Please suggest some packages in
R to find clusters via finite mixture model with continuous variables. And
also I wish to verify the distributional properties of the mixture distributions
by fitting the model with lognormal, gamma, exponentials etc,.
Thanks in advance,
warm regards,Ms.Karunambigai M
PhD Scholar
Dept. of Biostatistics
2009 Apr 30
1
finite mixture model (2-component Weibull): plotting Weibull components?
Dear Knowledgeable R Community Members,
Please excuse my ignorance, I apologize in advance if this is an easy question, but I am a bit stumped and could use a little guidance.
I have a finite mixture modeling problem -- for example, a 2-component Weibull mixture -- where the components have a large overlap, and
I am trying to adapt the "mclust" package which concern to normal
2005 Oct 21
1
finite mixture model (2-component gaussian): plotting component gaussian components?
Dear Knowledgeable R Community Members,
Please excuse my ignorance, I apologize in advance if this is an easy question, but I am a bit stumped and could use a little guidance.
I have a finite mixture modeling problem -- for example, a 2-component gaussian mixture -- where the components have a large overlap, and
I am trying to use the "mclust" package to solve this problem.
I need
2008 Jan 24
0
posterior probability in finite mixture
Dear All,
This is a question somewhat off-topic.
Say, if I have known the number of components in the mixture, all the
estimated parameters, prior probabilities, and so on for a finite
mixture model, how might I compute the posterior probabilities of each
case for a new dataset without observed response (Y)? I want to know
the parametric form of such calculation such that I can calculate it
2006 Jul 13
1
TR: Latent Class Analysis
_____
De : Pousset [mailto:maud.pousset@noos.fr]
Envoyé : mardi 4 juillet 2006 18:38
À : 'r-help@stat.math.ethz.ch'
Objet : Latent Class Analysis
Hello everybody,
I am working on latent class analysis and have already used the ‘R’ function
« lca » (in the e1071 package). I ‘ve got interesting results but I can’t
simply find out the methodology used by this routine :
1) What
2001 Nov 16
2
Finite Mixture Analysis
Are there any S-Plus or R libraries/packages that do Finite Mixture
Analysis following the algorithms similar to those implemented in Geoffrey
MacLachlan's EMMIX program?
Thanks.
Dr. Marc R. Feldesman
email: feldesmanm at pdx.edu
email: feldesman at attglobal.net
fax: 503-725-3905
"Don't know where I'm going.
Don't like where I've been.
There may be no exit.
But
2007 Oct 10
0
detecting finite mixtures
This question teeters on the brink of general statistics rather than an
R-specific issue, but I'm hoping it boils down to how I coded V&R's EM
algorithm for finite mixture modeling and not something worse (i.e. that
my plan is impossible).
Briefly, I'm trying to simulate an experiment where the hypothesis
concerns bimodal vs. unimodal distributions, in order to see what
2009 Aug 06
0
Fitting Mixture of Non-Central Student's t Distributions
Dear Ingmar & Dave,
Thanks a lot for your help and sorry for the late reply.
Finally, I've found a way to separate the mixture of distributions
(empirically). But the gamlss package looks great, I'm sure it will help
me during my further studies.
Kind regards,
Susanne
On 15 Jun 2009, at 20:09, Ingmar Visser wrote:
> Dear Susanne & Dave,
>
> The gamlss package family
2011 Nov 09
0
latent class models
I would like to extract the information criteria from an hlme object (lcmm
package). Would you please advise me on how to extract just the BIC
(AIC)?
On another topic, when I apply hlme (lcmm) and flexmix (flexmix package) to
the same data set, I get BIC values that suggest two different latent class
structures. Flexmix using FLXMRlmm predicts two classes while hlme says
4. Can you suggest a
2011 Jan 31
2
Latent Class Logit Models in discrete choice experiments
Dear R users,
I would like to perform Latent Class Logit Models for the analysis of choice experiments in environmental valuation.
This kind of analysis is usually performed with NLogit Software (http://www.limdep.com).
I attach the results I usually obtain using NLogit and NLogit model specifications.
For Random parameter models and Logit Models I usually perform my analysis with the package
2005 Mar 15
0
New package for latent trait models
Dear R-users,
I'd like to announce the release of my new package "ltm" (available
from CRAN), for fitting Latent Trait Models (including the Rasch
model) under the Item Response Theory approach. The latent trait model
is the analogous of the factor analysis model for Bernoulli response
data. "ltm" fits the linear one- and two-factor models but also allows
for
2005 Mar 15
0
New package for latent trait models
Dear R-users,
I'd like to announce the release of my new package "ltm" (available
from CRAN), for fitting Latent Trait Models (including the Rasch
model) under the Item Response Theory approach. The latent trait model
is the analogous of the factor analysis model for Bernoulli response
data. "ltm" fits the linear one- and two-factor models but also allows
for
2008 Sep 29
1
Located Latent Class Analysis (Uebersax)
Dear list members
I am new to the list and would be much appreciated if you could help me.
I am very interested in applying Latent Class Model for analysing multiple raters agreement data. I have recently found a paper by Uebersax, J. (1993) which described a method in a form of Located Latent Class Analysis (llca). Uebersax has written a Fortran program which is available on the web, for the
2002 Oct 22
0
FW: Mixture Transition Distribution (MTD) time series model in R or S ?
Forwarded from Adrian Raftery:
-----Original Message-----
From: Adrian Raftery [mailto:raftery at stat.washington.edu]
Sent: Tuesday, October 22, 2002 10:15 AM
To: Warnes, Gregory R
Subject: Re: FW: [R] Mixture Transition Distribution (MTD) time series
model in R or S ?
Thanks, Greg. Current MTD software is reviewed in
Andr? Berchtold and Adrian E. Raftery
"The Mixture Transition
2011 Dec 23
2
Latent class multinomial (or conditional) logit using R?
Hi everyone?
Does anybody know how can I estimate a
Latent class multinomial (or conditional) logit using R?
I have tried flexmix, poLCA, and
they do not seem to support this model.
thanks in advance
adan
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