Displaying 20 results from an estimated 8000 matches similar to: "R capabilities: Bayesian estimation, Covariance Structure Analysis"
2008 Apr 02
0
[R-SIG-Finance] Bayesian estimation of jump-diffusion processes andself-exciting counting processes
Sincerely,
Jeffrey Todd Lins
Executive Director
Quantitative Analysis
Saxo Bank A/S
(Sent from my BlackBerry)
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From: r-sig-finance-bounces at stat.math.ethz.ch <r-sig-finance-bounces at stat.math.ethz.ch>
To: r-help <R-help at stat.math.ethz.ch>; r-sig-finance at stat.math.ethz.ch <r-sig-finance at stat.math.ethz.ch>
Sent: Wed Apr 02 06:49:54 2008
2011 Mar 18
5
confirmatory factor analysis program in R
Does someone have confirmatory factor analysis program in R,which includes
factor loading and some tests?thank you!
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2011 Mar 27
2
Structural equation modeling in R(lavaan,sem)
I am a new user of the function sem in package sem and lavaan for structural
equation modeling
1. I don?t know what is the difference between this function and CFA
function, I know that cfa for confirmatory analysis but I don?t know what
is the difference between confirmatory analysis and structural equation
modeling in the package lavaan.
2. I have data that I want to analyse but I have some
2011 Mar 11
2
confirmatory factor analysis in R
In R software,does it have packages about confirmatory factor analysis in R
software? 3Q
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2009 Feb 28
0
Implementation of quasi-bayesian maximum likelihood estimation for normal mixtures
Hi,
as you can see in the topic, I am trying to fit a normal mixture
distribution with the approach suggested by Hamilton (1991). Since I
couldn't find any existing packages including the quasi-bayesian mle, I
have to write my own function. Unfortunately, I have absolutely no
experience in doing this.
If you're not familiar with the QB-MLE, I attached the formula as pdf.
The idea
2003 Jul 24
4
Problem w/ source
I'm trying to use the source command to run commands from a file. For
instance: source("do.R"), where do.R is a file in the same directory in
which I am running R.
The contents of do.R are:
ls()
print("hello")
sum(y1)
mean(y1)
After source("do.R"), all I see is:
> source("do.R")
[1] "hello"
I'm using the X11 version of R for
2004 Jan 29
1
Confirmatory Factor Analysis in R? SEM?
Hi
Has anyone used R to conduct confirmatory factor analysis? This email pertains to use of SEM.
For context consider an example: the basic idea is that there are a bunch of observables variables (say study habbits, amount of time reading in the bus, doing homework, helping other do homework, doing follow-up on errors etc.) and one believes that all these variables maybe measured by two or
2005 Mar 23
1
Confirmatory Factor Analysis in Non-Normal case
Hi:
I am doing a confirmatory factor analysis now. In
the analysis, I have null hypothesis test which
specify some special structure for the loading matrix.
And the alternative is there is no such special
structure. Then the log likelihood ratio test can be
used. The problem I have is my data comes from a
questionnaire and all the variables are discrete from
1 to 7, which makes the normality
2009 May 22
1
Confirmatory factor analysis problems using sem package (works in Amos)
Hello all,
I'm trying to replicate a confirmatory factor analysis done in Amos. The
idea is to compare a one-factor and a two-factor model. I get the following
warning message when I run either model:
"Could not compute QR decomposition of Hessian.
Optimization probably did not converge."
I have no idea what to do here. I believe posters reported the same
problem. It seems
2011 Feb 09
0
Course: "Introduction to Bayesian Data Analysis using WinBUGS and R"
Apologies for cross-posting. Places are available in the following
course:
"Introduction to Bayesian Data Analysis using WinBUGS and R"
Best Regards,
Pablo
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Course: Introduction to Bayesian Data Analysis using WinBUGS and R
Where: Linux Hotel, Essen-Horst, Germany
2012 Apr 16
0
COURSE: Introduction to Bayesian Data Analysis using WinBUGS and R, 21-23 Juni 2012
Dear list members,
Apologies for cross-posting. Please, find below the information of
an introductory Bayesian Data Analysis course with WinBUGS and R.
If you have any question don't hesitate to contact me.
Best regards,
Pablo
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Course: Introduction to Bayesian Data Analysis using WinBUGS and R
Where: Linux Hotel, Essen-Horst,
2012 Jan 26
0
Workshop on Bayesian methods and WinBUGS. One week to go!
Workshop on Bayesian methods and WinBUGS
***************************************
A two-day workshop on Bayesian methods is being held on Friday 3 - Saturday 4 February 2012 at the University of Sydney.
This course is suitable for graduate students, academics, researchers and professionals who wish to introduce themselves in the application of Bayesian methods and the use of WinBUGS software.
2009 Mar 21
0
Can not replicate estimates with rScreen function from ROSSI "Bayesian Statistics and Marketing"
Hi R-users,
I have the following problem: I am trying to learn something about bayes methodology and started paying around bayesm package, but could not replicate the Conjunctive model's estimates as they appear in Rossi et al "Bayesian Statistics and Marketing", 2005, JWS, pages 264-265, Table CS4.4.
I have downloaded in my working directory the documents from
2012 Aug 07
0
Bayesian estimates for the 1st-order Spatial Autoregressive model
Greetings:
I am a relatively new user to R. I was wondering if anyone is familiar with MATLAB's far_g() function. If yes, is there an R equivalent to this? I would like to have the ability to input as my observation vector continuous values. I noticed that there was something close in R, sar_probit_mcmc(), but I can only use a binary vector as my observation vector.
If my
2013 Oct 16
0
course: Bayesian Data Analysis with R and WinBUGS
Dear list members,
Best greetings and apologies for cross-posting. There are available
places for the course:
"Bayesian Data Analysis with R and WinBUGS", please find the description
of the course below.
If you have any question don't hesitate to contact me.
Best regards,
Pablo
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
*Three days course in: Bayesian Data
2004 Jul 13
5
Help with factanal and missing values
Hi list,
I'm performing a series of confirmatory factor analysis on different
groupings of items from data collected with questionnaires. There are some
missing values.
For those sets with no missing values I call
factanal(datamatrix,factors=n)
where datamatrix is a table of all observations for the items under
investigation.
This call fails when there are missing values.
help(factanal)
2013 May 03
0
Courses: Statistical Analysis with R - Bayesian Data Analysis with R and WinBUGS
Dear list members,
Apologies for cross-posting. Please, find below the information of
two statistical courses with R:
1) Statistical Analysis with R
2) Bayesian Data Analysis with R and WinBUGS
If you have any question don't hesitate to contact me.
Best regards,
Pablo
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
*Two days course in: Statistical Analysis with R
*Where:
2010 Mar 22
1
Bayesian Networks and Bayesian Survival Analysis
Looking for help with a project for the US Navy, requires knowledge of
Bayesian Statistics, Bayesian Networks and Survival Analysis. Please respond
with CV. Thanks.
--
David Katz
www.davidkatzconsulting.com
[[alternative HTML version deleted]]
2011 Jun 16
2
Bayesian Credible Intervals for a Proportion
I am trying to calculate Bayesian Credible Intervals for a proportion
(disease prevalence values to be more specific) and am having trouble using
R to do this. I am working with ncredint() function but have not had success
with it. Please help!
Example:
Positive samples = 3
Total sampled = 10
Prevalence = 0.3
pvec <- seq(1,10,by=1)
npost = dbinom(pvec,10,prob=0.3, log=FALSE)
ncredint(pvec,
2011 Aug 16
3
Bayesian Relative Survival Analysis in R?
Hi all,
May i know does R has packages or code to run "Bayesian Relative Survival Analysis"? I have look through Bayesian Survival Analysis(2001) by Joseph George Ibrahim<http://www.google.com/search?tbo=p&tbm=bks&q=inauthor:%22Joseph+George+Ibrahim%22>, Ming-Hui Chen<http://www.google.com/search?tbo=p&tbm=bks&q=inauthor:%22Ming-Hui+Chen%22>, Debajyoti