Displaying 20 results from an estimated 5000 matches similar to: "multinomial test"
2006 Sep 07
3
pairwise.t.test vs. t. test
Hi,
If I set the p.adjust="none", does it meant that the output p values from the pairwise.t.test will be the same as those from individual t.tests (set var.equal=T, alternative="t")?
I actually got different p values from the two tests. See below. Is it supposed to be this way?
Thanks
Johnny
> x
[1] 61.6 52.7 61.3 65.2 62.8 63.7 64.8 58.7 44.9 57.0 64.3 55.1 50.0 41.0
2006 Aug 03
4
meta characters in file path
Hi,
I need to read in some files. The file names contain come meta characters such as @, #, and white spaces etc, In read.csv, file= option, is there any way that one can make the function to recognize a file path with those characters?
Thanks
Johnny
[[alternative HTML version deleted]]
2007 Mar 05
3
Mixed effects multinomial regression and meta-analysis
R Experts:
I am conducting a meta-analysis where the effect measures to be pooled
are simple proportions. For example, consider this data from
Fleiss/Levin/Paik's Statistical methods for rates and proportions (2003,
p189) on smokers:
Study N Event P(Event)
1 86 83 0.965
2 93 90 0.968
3 136 129 0.949
4 82 70 0.854
Total
2005 Nov 21
2
Multinomial Nested Logit package in R?
Dear R-Help,
I'm hoping to find a Multinomial Nested Logit package in R. It would
be great to find something analogous to "PROC MDC" in SAS:
> The MDC (Multinomial Discrete Choice) procedure analyzes models
> where the
> choice set consists of multiple alternatives. This procedure
> supports conditional logit,
> mixed logit, heteroscedastic extreme value,
2005 Nov 10
2
Help to multinomial analyses
Dear Sirs,
Could you please be so kind as to send us some information on residuals in
multinomial logistic models? Is it possible to use R software?
We thank you in advance.
Sincerely yours
Luciana Alves,MSc
Beatriz Leimann, MD
--
Luciana Correia Alves
Doutoranda em Sa??de P??blica
ENSP - Fiocruz
2005 Oct 31
1
write.table call
Hi,
I use write.table() to write a file to an external xls file. the column names left-shift one position in output file. I check with col.names() row.names(), the file is fine. How to prevent the shifting?
I71 I111 I304 I307 I305 I306 I114 I72
AFFX-BioB-5_at 6.66435 6.787807 5.335962 5.250163 6.47423 5.882104 5.965109 6.591687195
AFFX-BioB-M_at 6.163227 5.965427 4.665569 2.743531 6.097244
2005 Jul 27
2
logistic regression: categorical value, and multinomial
I have two questions:
1. If I want to do a binomial logit, how to handle the
categorical response variable? Data for the response
variables are not numerical, but text.
2. What if I want to do a multinomial logit, still
with categorical response variable? The variable has 5
non-numerical response levels, I have to do it with a
multinomial logit.
Any input is highly appreciated! Thanks!
Ed
2010 Jun 06
2
fitting multinomial logistic regression
Sir,
I want to fit a multinomial logistic regression in R.I think mlogit() is the
function for doing this. mlogit () is in packege globaltest.But, I can not
install this package. I use the following:
install.packages("globaltest")
Can you help me?
Regards,
Suman Dhara
[[alternative HTML version deleted]]
2012 Nov 06
1
Multinomial MCMCglmm
Thanks for your answers Stephen and Ben,
I hope I am posting on the correct list now.
I managed so far to run the multinomial model with random effect with the
following command:
MCMCglmm(fixed=cbind(Apsy,Mygl,Crle,Crru,Miag,empty) ~
habitat:trait,random=~idh(trait):mesh,family="multinomial12",
data=dataA,rcov=~trait:units)
(where multiple responses are different species,
Habitat
2007 Jul 19
2
multinomial logit estimation
Good morning,
I'd like to estimate a simple multinomial logit model in R (not a McFadden conditional logit). For instance, I'd like to estimate the probability of someone having one of eight titles in a company with the independent variables being the company characteristics. A binary logit is well documented. What about the multinomial?
Thanks,
Walt Paczkowski
2006 Feb 22
2
does multinomial logistic model from multinom (nnet) has logLik?
I want to get the logLik to calculate McFadden.R2 ,ML.R2 and
Cragg.Uhler.R2, but the value from multinom does not have logLik.So my
quetion is : is logLik meaningful to multinomial logistic model from
multinom?If it does, how can I get it?
Thank you!
ps: I konw VGAM has function to get the multinomial logistic model
with logLik, but I prefer use the function from "official" R
2007 Mar 30
1
faster computation of cumulative multinomial distribution
Dear list members,
I have a series of /unequal/ probabilities [p1,p2,...,pk], describing
mutually exclusive events, and a "remainder" class with a probability
p0=1-p1-p2-....-pk, and need to calculate, for a given number of trials
t>=k, the combined probability that each of the classes 1...k contains
at least 1 "event" (the remainder class may be empty).
To me this reaks
2004 Sep 23
3
multinomial logistic regression
Hi, how can I do multinomial logistic regression in R?
I think glm() can only handle binary response
variable, and polr() can only handle ordinal response
variable. how to do logistic regression with
multinomial response variable?
Thanks
__________________________________
2008 May 13
1
How to get predicted marginal (aka predicted mean) after multinomial logistic?
I tried to use the effect() to get predicted marginals for multinomial
logistic as I did for general logistic regression, but failed. Is there
anyway to do that?
Thx!
--
View this message in context: http://www.nabble.com/How-to-get-predicted-marginal-%28aka-predicted-mean%29-after-multinomial-logistic--tp17200114p17200114.html
Sent from the R help mailing list archive at Nabble.com.
2010 Sep 11
2
Generating multinomial distribution and plotting
I have had plenty of succes generating one dimensional variables and plotting
them, but what do i do for more (specifically 2) dimensional multinomial
variables?
I figure i have to create a vector consisting of two 1 dim normallly
distributed variables, that way i can also control the correlation.
But how do i do this :) ?
Many thanks
--
View this message in context:
2005 Sep 08
1
Multinomial Logit and p-values
Hi,
I am trying to obtain p-values for coefficient estimates in a multinomial
logit model. Although I am able to test for significance using other
methods (e.g., Wald statistics), I can't seem to get R to give me simple
p-values. I am sure there is a very simple solution to this, but the R
archives seem to have nothing on this issue. I would appreciate any help.
Thanks in advance!
Best,
2009 Aug 01
4
Likelihood Function for Multinomial Logistic Regression and its partial derivatives
Hi,
I would like to apply the L-BFGS optimization algorithm to compute the MLE
of a multilevel multinomial Logistic Regression.
The likelihood formula for this model has as one of the summands the formula
for computing the likelihood of an ordinary (single-level) multinomial logit
regression. So I would basically need the R implementation for this formula.
The L-BFGS algorithm also requires
2006 Sep 10
2
formatting data to be analysed using multinomial logistic regression (nnet)
I am looking into using the multinomial logistic regression option in the
nnet library and have two questions about formatting the data.
1. Can data be analysed in the following format or does it need to be
transformed into count data, such as the housing data in MASS?
Id Crime paranoia hallucinate toc disorg crimhist age
1 2 1 0 1 0 1 25
2 2 0 1 1 1 1 37
3 1 1 0 1 1 0 42
4 3 0
2010 Jun 09
3
bootpred for multinomial
I applied bootpred for multinomial logistic reg. (with nnet package). I used same as theta.fit and theta.predict of R for my data. but give me error. Can I do this with
response vriable;7 levels
predictor variables:5 (1 classifier, 4 continuous)?
Thanks alot
Azam
[[alternative HTML version deleted]]
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