Displaying 20 results from an estimated 1000 matches similar to: "poLCA and conditional dependence"
2012 Feb 13
1
Retrieve by Id from an R list
Hi everyone,
I'm using the poLCA module for some analysis work.
Basically, Im using the command >poLCA(f, data=response,nclass=2)
This returns a poLCA object (a list)
>From this data, I need to retrieve certain indexes, such as[[5]] as seen
below.
[[5]]
Pr(1) Pr(2) Pr(3)
class 1: 0 1.0 0.0
class 2: 0 0.5
2012 Feb 12
3
Writing output into a file
Hi everyone,
I'm an R newbie working with the poLCA module. I achieved my target without
having to bother anyone, but It seems that I've got stuck at the last
minute.
My problem is simple. I need to write my results into a file.
My results are in the shape of a list (unbalanced columns)
I've considered several methods (sink(), write.file) etc. etc.
Unfortunately, I'm not the best
2012 Mar 01
3
Standard variance / devistion clarification
Dear gurus,
Im a newbie, and I want to ask a very general question.
Assume that I have a set of numbers as follows,
1, 1, 2, 10, 100, 10,1
>From these, I need to identify which number is the most different as
compared to others. (in this case, it will be 100, since its way larger
than the other numbers). It doesnt have to be specifically this way, but I
need to identify which number(s) are
2012 Jul 04
1
How do you impute missing data using Latent Class Model (poLCA package)
My problem is I have data with both categorial and numerical data,
currently only the categorical number contains missing data, was wondering
do I make a new dataframe containing only the categorical columns?
How would you use Latent Class Model specifically poLCA to impute the
missing data?
http://www.sscnet.ucla.edu/polisci/faculty/lewis/pdf/poLCA-JSS-final.pdf
The reason why I chose not to
2013 Apr 03
1
(no subject)
Hello,
I want to perform a latent class analysis using poLCA package. My formula
is:
substances <- cbind(subs1, subs2, subs3, subs4, subs5, subs6) ~
gender+age+education+income+occupation+urban+dbehavior+incarceration+treatment+depression+alcriteria
I want to include sample weights in the model, I have read that poLCA does
not take into account weights, but when I introduce them, it seems
2012 Mar 08
1
poLCA
Hi,
I am running some latent class models with civariates using poLCA in R, and
have a question the meaning of some error messages.
My model has 8 y-variables (dichotomous) and 2 x-variables (also dichotomous),
and I am trialling different numbers of classes.
When I run a 2-class model, the model runs fine without any error messages. I
used the nrep = 10 option to avoid local maxima. Class %
2012 May 29
1
model frame and formula mismatch with latent class analysis poLCA
Dear R-users,
I keep getting an ERROR saying " Error in model.matrix.default(formula,
mframe) : model frame and formula mismatch in model.matrix() " when i fit
poLCA with more than 63 variables. Below are the details.
I am trying to do a Latent Class Analysis using poLCA. My data set contains
binary scores of, for instance, 200 students on 100 items. These numbers
could even be more
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
--
View this message in context: http://r.789695.n4.nabble.com/Latent-class-multinomial-or-conditional-logit-using-R-tp4230083p4230083.html
Sent from the R help mailing list archive at
2009 Feb 25
2
run latent class analysis with R
What's the best approach to running latent class analysis with R? I've downloaded both randomLCA and poLCA packages, but I am interesting in running a standard LCA with individual records (not frequency table) as input data.
Wen Gu
John Jay College of Criminal Justice445 West 59 StreetNew York, NY 10029
wgu@gc.cuny.edu
_________________________________________________________________
2010 Mar 05
0
Still on poLCA
Dear all,
I have just sent a message asking about poLCA but I thought of another question I wanted to ask. I get the G^2 statistic in my output and want to test for its significance. I get that the degrees of freedom for the test are (S-1-p) where S is the number of different patterns observed and p is the number of estimated parameters. Are these the "residual degrees of freedom" that
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
2009 Jul 02
1
Windows zip-files (binaries) for older version of scatterplot3d
Hi,
I am working with -poLCA- which uses the package -scatterplot3d- in
order to work. However, I work on a restricted server that is not
online. The R-version installed there is 2.6. However, running
library(poLCA) after installing the most recent -scatterplot3d- on the
server leaves me with R telling me that scatterplot3d needs R-version
2.7 or a more recent versions. Since I cannot install the
2009 Sep 08
1
cbind formula definition
Hi there,
I have the following problem:
I have a package called "polLCA" which has the following syntax:
poLCA(formula, data)
and needs the following formula definition:
formula <- cbind(V1,V2,V3,...)
So far so good.
What I tried now was the following:
#Get "data" with the "read.table" fuction
data <- read.table("d:/ .....)
#Select cols to use in the
2013 Oct 25
2
R CMD check problem with R 3.0.2
Using SUSE Linux, Windows 32 bit and Windows 64 bit R 3.0.2 , I am unable
to use R CMD check successfully. Here is the Windows 64 bit report:
Z:\R\source\effects>R CMD check pkg
* using log directory 'Z:/R/source/effects/pkg.Rcheck'
* using R version 3.0.2 (2013-09-25)
* using platform: x86_64-w64-mingw32 (64-bit)
* using session charset: ISO8859-1
* checking for file
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
2011 Aug 05
0
Latent Class with covariates
Dear all
Last week, I posted a question and some of you spent their valuable time to respond. Thank you (once again). This time, after doing a lot of homework, I return with a second question on the issue.
I was advised to use poLCA for a Latent Class Analysis with covariates. The software works well, although I feel a bit uncomfortable with the fact that you need to run many times the
2006 Aug 09
0
openldap backsql as mysql + dovecot + postfix + maildir + virtual users
Dear All,
I wrote a step by step how-to in the above topic
Refer:
http://www.ceylonlinux.com/pdf/openldap_backsql_postfix_maildir_cl.pdf
http://www.ceylonlinux.com/pdf/openldap-success.pdf
Best Regards,
M.B.G.Suranga De Silva.
CTO
CEYLONLINUX
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From: suranga <suranga at techcert.lk>
Subject: back-sql
Date: Wed,
2006 Aug 18
0
LDAP Auth problems with auth_bind=yes
Hi,
I first posted this problem a day or two ago and have not seen any
responses yet.
To clarify my problem, I am authenticating virtual users against Active
Directory on Win2k3, where their login id is their email address. I am
using an almost identical setup to Suranga's below, however my initial
bind user doesn't have access to the userPassword attribute, so I am
using:
auth_bind
2004 Aug 06
3
Q: Is it possible?
wow, Enrico ... it's a great help ;-)
I comment:
----- Original Message -----
From: "Enrico Minack" <enrico.minack@informatik.tu-chemnitz.de>
To: <icecast@xiph.org>
Sent: Wednesday, February 11, 2004 8:00 PM
Subject: Re: [icecast] Q: Is it possible?
<p>> Hi Raúl,
>
> interesting project ;-) So this is what I would recommend. For a number of
> remote
2008 Jan 16
1
Quantile regression
Dear friends ,
I am trying to perform quantile regression analysis to analyse my work. I
could install the R package in windows xp. Now I am struggling
for the next work.I have *marks of students at the university
examinations*( say response variable Y) and their
*entrance examination marks* ( Independent one variable X ).I have entered
data in Excel spread sheet as records.
I will be thankful