Displaying 20 results from an estimated 600 matches similar to: "help on EM Algorithm for bivariate normal"
2005 Mar 09
1
Trouble with mixreg
Dear All
I am trying to estimate a mixture of regression and get the
following error using the mixreg package:
Error in y - yhat : non-conformable arrays
The instruction I used were:
x <- as.matrix(LRHUN)
y <- as.matrix(LRINTER)
TS <- list(list(beta=c(3.0,1.0),sigsq=1,lambda=0.4),
list(beta=c(0.0,1.0),sigsq=1,lambda=0.6))
prova <- mixreg(x,y, ncomp=2, theta.start=TS)
2005 Jun 07
4
Conjoint in R
Hello all,
I am trying to apply a conjoint analysis in order to determine the best
profile that captures the most preferred combination of levels of given
categorical factors.
For this a set of factors is given and initially a fractional factorial
design has to be produced as a subset of all possible factor levels
combinations, sufficient to estimate the main effects utilities.
Then the
2004 May 22
2
Mixreg package
Dear R users
it's my first time using R and I am specially interested in doing analyses with the "mixreg" package.
I use W2000 but it seems the code for R is available only for Linux Os. Anyway I I downloaded the *tar.gz file of the package for R and the converted it in a *zip file.
Apparently the installation process was ok, but when loading it I got the following error:
Error in
2004 Sep 13
2
Mixture Analysis
Dear all,
Does anyone know if the mixture analysis (i.e : sexual dimorphism, age group,…) can be done with R software ? Thanks for your help
Dan
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[[alternative HTML version deleted]]
2004 Oct 04
4
scatter plot and marginal
Hallo,
I would like to add the marginal distributions along the X and the Y axis to a
scatter plot.
Can anybody help me, please?
Thank you,
Paolo
--
Paolo Bulla
Istituto di Metodi Quantitativi
Universit?? "L. Bocconi"
viale Isonzo 25
20136 Milano
paolo.bulla at unibocconi.it
2005 Dec 28
2
R on Mandriva 2006
Hello anyone,
I'm trying to install R on Mandriva 2006 distribution via rpm file with the
line
urpmi R-2.0.0-1mdk.i586.rpm
but I got an error message saying that the file is not accessible due to some
info problem.
I also tried with a source code in R-2.1.1.tar but I think that there is some
problem concerning the new version of gcc (4.x), so I downgraded it to gcc
3.4.5 but it does
1998 Oct 14
1
Re: R vrs S
Hi, I am relatively new to R programming. I have Guido's version on a
Win95 Pentium with 32 Mb RAM.
I tried to compile the Package MIXREG of Rolf Turner in S to R
almost everything works OK but he has a function po = partial outer
product as follows:
po <- function(a,b) {
array(apply(b,2,"*",a),dim=c(dim(a),dim(b)[2]))) }
in S-Plus given
x = ( 1 1
1 2
1 3
1 4
2013 Apr 01
5
Próxima reunión del "Grupo de Usuarios de R de Madrid" - Jueves 4-Abril....
Buenas a todo,
Una breve nota para comentaros que este jueves (4-Abril) mantendremos la
siguiente reunión del "Grupo de Usuarios de R de Madrid".
La agenda prevista es la siguiente:
(Prevista) Jueves 4 de Abril de 2013
- *Lugar:* Facultad de Ciencias - UNED. C/ Senda del Rey,
9.<http://portal.uned.es/portal/page?_pageid=93,688166&_dad=portal&_schema=PORTAL>
-
2004 Mar 16
3
multiple summation
Hello,
I have to compute a multiple summation (not an integration because the
independent variables a
are discrete) for all the values of a function of several variables f
(x_1,...,x_n), that is
sum ... sum f(x_1,...,x_n)
x_1 x_n
have you some suggestion? Is it possible?
I know that for multiple integration there is the function adapt, but it has at
most n=20. In my case n depends on the
2004 May 26
1
Need help on Mclus output
Dear useRs,
I have fitted a mixture with 4 normal components on a univariate distribution using the Mclust package.
Now, I would like to get a variable with the cluster membership of each class, or in alternative a variable with the posterior probabilities for each component.
Also I cannot find where are the paramenters estimates for each component ,i.e. means and variances.
I've read the
2009 Aug 11
3
Problem with modifying a data frame
Hi All,
this could be a simple question but I am looking into modifying a data frame
using a "condition" without the need to loop over that data, would that be
possible?
I have tried the following
> x<-c(4,5,6,6,8)
> y<-c("a","b","b","b","c")
> data<-data.frame(x,y)
> data
x y
1 4 a
2 5 b
3 6 b
4 6 b
5 8 c
if
2010 Jun 16
2
error message stops "for" command
Hello all,
I am using a for statement to run a loop in R but I get an error message and
the loop stops. I need that the loop continues til the end. I know I can use
the NEXT command but I don´t know how the sintax woul be for this particular
situation.
Any suggestions?
Thanks,
Diana Buitrago
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2003 Sep 24
3
Call transfert with dial plan
Hello,
As I have problems getting transfert call working with my grandstream
SIP Phones, I woul like to know if it is possible to do it with a proper
dial plan in exten.conf.
I haven't found any information about that in the docs.
Regards,
Daniel ANDRE
--
Daniel ANDRE (mailto:dandre@iris-tech.fr)
IRIS Technologies - http://www.iris-tech.com
Serveur kwartz - http://www.kwartz.com
2009 Jan 01
2
Ruby on rails API website suggestion
I would like to request a feature.. like: http://rubyonrails.org/function
and it
will search inside http://api.rubyonrails.org for the function and
show it.
Like PHP has.. http://php.net/basename
Example: http://rubyonrails.org/truncate and it will points to
http://api.rubyonrails.org/classes/ActionView/Helpers/TextHelper.html#M001541
That woul be cool.
Thanks
2009 Jan 01
2
Ruby on rails API website suggestion
I would like to request a feature.. like: http://rubyonrails.org/function
and it
will search inside http://api.rubyonrails.org for the function and
show it.
Like PHP has.. http://php.net/basename
Example: http://rubyonrails.org/truncate and it will points to
http://api.rubyonrails.org/classes/ActionView/Helpers/TextHelper.html#M001541
That woul be cool.
Thanks
2006 Mar 24
4
validate if different?
Hi, I seem to remember seeing the equivalent of saving only if all
attributes are different. I can''t seem to find that now in the API or the
agile book.
I''m using the acts_as_versioned and only want to save if the input is
different.
Thanks,
Steve
http://www.smarkets.net
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2014 Jul 30
2
Fwd: SMB question
Hi, I sent you an email but now when I read it again, it looks like there
were some mistakes in it... Please ignore that and address only the
following message:
Hi,
I don't know if this is the right place to ask, but I really couldn't find
it anywhere on the web and if you could only provide me with a quick hint,
it would be really helpful!
I'm experiencing the following problem
2003 May 11
1
NLME - multilevel model using binary outcome - logistic regression
Hi!
I'm pretty raw when working with the R models (linear or not).
I'm wondering has anybody worked with the NLME library and dichotomous
outcomes.
I have a binary outcome variable that I woul like to model in a nested
(multilevel) model.
I started to fit a logistic model to a NLS function, but could not suceed. I
know there are better ways to do it in R with either the LRM or GLM wih
2012 Aug 09
1
maildir to sdbox offline conversion
Hi all. I've just installed dovecot v2.1 in a multihomed, multiinstance
setup, It took me two days to convert the old v1.1 configs, now everything
works like charm! But. :)
I have several maildir mailboxes, I decided to use the sdbox storage type
instead.
I ran into difficoulties using the dsync util.
My virtual users are in an OpenLDAP DB on a differnet machine, and I do not
have access
2014 Jul 30
1
Smb question
Hi,
I don't know if this is the right place to ask, but I really couldn't find
it anywhere on the web and if you could only provide me with a quick hint,
it would be really helpful!
I'm experiencing the following problem with the SMB file share protocol:
1. User1 logs into windows.
2. User1 loads a file (from a network share) and works on it
3. User2 logs into windows on a different