Displaying 14 results from an estimated 14 matches similar to: "problems with MNP"
2005 Apr 03
1
wrong signs using MNP.
Hi,
I recently found the MNP package. Out of curiosity, I tried to reproduce
results from Greene (Econometric Analysis, fourth edition) on page 874.
The signs of the estimates are all opposite those of Greene's table. Might
anyone be able to tell me what I am doing wrong?
I have attached the function call, the coefficients, and a few rows of the
data. The dataset has 210 observations.
2007 Jun 15
0
Coefficients and Covariances in MNP
Hi everyone,
I use the MNP package to fit my data. I can interpret the coefficients and
covariance. I cannot put them into the original model which is
Wi=Sum(bXij) over j,
Yi(Wi)=0 if max(Wi)<0, j if max(Wi)=Wij>0
j=3 here, 3 choice alternatives, Clio, Punto, Polo
I don't know how to put the coefficients and covariances into W, to
construct W for each j.
The coefficients and
2005 Dec 15
0
MNP - discrete choice experiment
Hello,
I need a little initial help with the MNP package.
I am trying to analyze a discrete choice experiment with the following
settings:
- choice sets consist of 3 alternatives
- choice alternatives are constructed by e.g. two attributes, say brand and
price.
- brand has three levels and price has four levels
- every respondent has to answer 4 different choice sets (drawn randomly or
2007 May 13
0
Error in dimnames(x) <- dn
Hi everyone,
I import data from access, and make an object (c) store the data,
when I want to use it in function mnp, it gives the below error:
Error in dimnames(x) <- dn : length of 'dimnames' [2] not equal to array
extent
> x<-odbcConnectAccess("db2.mdb")
> c<-sqlFetch(x,"Sheet2")
> odbcClose(x)
> c
choice clio punto polo
1
2009 Feb 13
0
Difference MNP-package and rmnpGibbs from bayesm-package
Hi all,
For my research I have to use a Multinomial Probit model. I saw that
there are two packages, that include a method to estimate my
parameters. The first one is the MNP-package of Imai and van Dyk. The
second one is part of the bayesm-package of Rossi.
The results for both packages are not the same using the same data.
Does anybody know what the difference is between these two approaches?
2006 Jan 22
1
Application of R and MNP
Dear all,
I'm a new user of R and MNP. Would anybody advise me what I have done wrong
to the input or data. When I add the R7, it said that there is an error
"SWP:singular matrix". I can add up to R6 only. Copy of the R console is
attached for your reference.
Thanks.
Andy
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2004 Jun 29
0
MNP
We would like to announce the release of our software, which is now
available through CRAN.
MNP: R Package for Fitting the Multinomial Probit Models
Abstract:
MNP is a publicly available R package that fits the Bayesian multinomial
probit models via Markov chain Monte Carlo. Along with the standard
multinomial probit model, it can also fit models with different choice
sets for each observation,
2004 Jun 29
0
MNP
We would like to announce the release of our software, which is now
available through CRAN.
MNP: R Package for Fitting the Multinomial Probit Models
Abstract:
MNP is a publicly available R package that fits the Bayesian multinomial
probit models via Markov chain Monte Carlo. Along with the standard
multinomial probit model, it can also fit models with different choice
sets for each observation,
2012 May 05
3
Panel MNP
Hi All,
Can the MNP package available in R be used to analyze panel data as well?
*i.e., *if there are 3 observed discrete choices for three time periods for
the same individual , can i estimate a panel multinomial probit model which
allows correlated errors across time periods and individual heterogeneity
(random coefficients) using the MNP package?
In the case that it doesn't work, is
2004 Feb 28
2
matrix inverse in C
Hi,
I'm writing an R package using the C code i've written. I'm wondering if
anyone knows an easy way to calculate an inverse and cholesky factor of a
matrix using the Fortran/C library of R: and how to call them from C. My
code is based on the Numerical Reciepe code, and I'm trying to use
something that is already in R.
Thanks for your help in advance,
Kosuke
2022 Aug 10
3
Time-tracking software
I am in search of open-source software to track billable time for myself. A quick Google search did not find anything that is open-source but I am hoping that this group might know of such software? The platform is C7.
2004 Dec 03
3
multinomial probit
Hello All,
I'm trying to run a multinomial probit on a dataset with 28 data
points and five levels (0,1,2,3,4) in the latent choice involving
response variable.
I downloaded the latest mnp package to run the regression. It starts
the calculation and then crashes the rpogram. I wish I could give the
error message but it literally shuts down R without a warning.
I'm using the R
2004 Apr 24
1
determinant via Lapack
Hi,
What Lapack routine(s) should I use to calculate the determinant of a
symmetric matrix of real numbers? I would appreciate any guidance on this
issue.
Thanks,
Kosuke
---------------------------------------------------------
Kosuke Imai Office: Corwin Hall 041
Assistant Professor Phone: 609-258-6601 (Direct)
Department of Politics Fax: 609-258-1110 (Department)
2004 Mar 30
2
RAqua and gcc
Hi,
I've recently purchased PowerBookG4 (panther) and installed RAqua 1.8.1.
I also installed gcc version 3.3 through Xcode tools. But, for some
reason, I'm having a hard time getting gcc work with R. For example, I get
the following error while installing Hmisc package. I would appreciate any
suggestion to fix this problem.
Thanks
Kosuke
* Installing *source* package