gamlss.mx can fit these I believe (although no experience with these myself)
flexmix may be (relatively easily) adaptable to accomplish this as well
hth, Ingmar
Ingmar Visser
Universitair Hoofddocent ontwikkelingspsychologie | Directeur College
Psychologie
Afdeling Psychologie | Faculteit
There are several packages that allow fitting hidden Markov models
(assuming that that is what you mean by HMM ...), which you can find here:
https://cran.r-project.org/web/packages/
Best, Ingmar
Ingmar Visser
Universitair Hoofddocent ontwikkelingspsychologie | Directeur College
Psychologie
done and we are confident about the
robustness of this new functionality we will post the package to CRAN.
Happy mixing, Ingmar Visser & Maarten Speekenbrink
Ingmar Visser
Universitair Hoofddocent ontwikkelingspsychologie | Directeur College
Psychologie
Afdeling Psychologie | Faculteit Maatsch
Dear Mark,
I don't know whether it has ... But there are some packages that provide
functionality for
specifying mixtures of user-defined distributions, in your case a factor
model. package
flexmix has an example of how to fit mixtures of user-defined models and so
does
my own package depmixS4 (wh
Samor,
A somewhat indirect answer: you could fit a mixture distribution to your
data and test
how many components are needed to best describe your data.
hth, Ingmar
On Wed, Feb 24, 2010 at 1:22 PM, Samor Gandhi wrote:
> Hello,
>
> Is there any test for bimodality in R that
>
> x <- c(rnorm(1
The objective function, scarti, needs a vector as input and not 4 separate
arguments.
constrOptim will call
pp<- c(0.0088,0.3339,0.3092,1.7530)
scarti(pp)
which produces the error
hth, Ingmar
On Thu, Mar 4, 2010 at 10:27 AM, wrote:
>
> I have to calculate the value of a set of parameter that
hi Lars,
a number of packages do this: flexmix does latent class regression,
depmix does lca on mixed variables, depmixS4 does lca regression on
mixed variables.
hth, Ingmar
On 28 May 2009, at 23:53, Lars Bishop wrote:
Dear R users,
Is there any package for Latent Class Analysis (to be used in
try issueing this before calling R CMD check
export _R_CHECK_CODOC_S4_METHODS_=true
hth, Ingmar
On 9 Jun 2009, at 16:17, Christophe Genolini wrote:
Hi the list,
I build a package. They was a mistake in it, but R CMD check did not
find it. Is that normal ?
Here is what Kurt gets (which i
Dear Susanne & Dave,
The gamlss package family has an enormous variety of distributions and
a function to combine
them into mixtures. In particular, the 3 parameter student's t and the
4 parameter generalized t
distribution.
Hth, Ingmar
On 15 Jun 2009, at 17:12, David Hunter wrote:
Hi Sus
Jon,
There are packages that fit mixtures of multivariate normals (mclust) and in
flexmix
one can also model multiple measures (with local independence assumption).
hth, Ingmar
On Fri, Jan 15, 2010 at 11:08 AM, Jon Toledo wrote:
>
> Iæe several packages for latent class analysis, but I was won
It seems that indeed providing other starting values initiates iterations
to take place. However, more worrisome is that the does not seem to
converge, even when upping the number of iterations. Below I run a 2 state
model on the same as well for comparison (I have added set.seed statements
to make
Robin,
On Wed, Apr 24, 2013 at 11:24 AM, Robin Tviet wrote:
>
> I am trying to understand how to use the flexmix package, I have read the
> Leisch paper but am very unclear what is needed for the M-step driver. I
> am just fitting a simple linear regression model. The documentation is far
> fro
Hi John,
I don't have access to R right now but do remember that some of the
parametersin gamlss have log and/or logit link functions which would give the
possibility for negative values.
Hth, Ingmar
Department of Psychology
University of Amsterdam
Op 11 Sep 2012 om 21:01 heeft John Kerpel he
Hi Johannes,
Below code gives good results for me; note that trying multiple
starting is often important in fitting mixture models, even in simple
cases like this.
Note also that the sigma and nu parameters in gamlssMX are fitted on a
log scale, hence the possible occurrence of negative results.
ht
Searching on r-project for bayesian hidden Markov model gives several
potentially useful links:
https://www.google.com/search?q=bayesian+hidden+markov+model&domains=r-project.org&sitesearch=r-project.org&btnG=Google+Search
hth, Ingmar
On Fri, May 23, 2014 at 12:09 PM, Bukar Alhaji wrote:
> Dea
R-site search with 'forward backward' returns references to packages for
fitting hidden Markov models.
hth, Ingmar
https://www.google.com/search?q=forward+backward&domains=r-project.org&sitesearch=r-project.org&btnG=Google+Search
On Wed, Oct 31, 2012 at 3:50 PM, quantum wrote:
> How can I wrti
Dear KitKat,
After installing R and reading some introductory material on getting
started with R you may want to check the CRAN task view on cluster analysis:
http://cran.r-project.org/web/views/Cluster.html
which has many useful references to all kinds and flavors of clustering
techniques, hierar
Dear EJ,
The depmixS4 package has no forecasting or predict functions, but as you
note, the forecast distribution is a relatively straightforward function of
the parameters. The posterior function provides you with the probability
distribution over the states at the end of your sequence and the tr
It's hard to answer these questions without knowing what the errors are and
how they can be reproduced.
Best, Ingmar
On Thu, Nov 22, 2012 at 1:03 AM, KitKat wrote:
> Thanks, I have been trying that site and another one
> (http://www.statmethods.net/advstats/cluster.html)
>
> I don't know if I sh
I get this error below, there seems to be hidden character in your
input instead of a parenthesis:
> for(ity in 1:4)
+ {
+ if (ity==1）
Error: unexpected input in:
"{
if (ity==1Ô"
> {
+ print(ity)
+ }
Error in print(ity) : object 'ity' not found
> }
Error: unexpected '}' in "}"
>
hth, Ingmar
On
Package news (see below for general description of functionality)
depmixS4 version 1.3-0 has been released on CRAN. See the NEWS file
for an overview of all changes. The most important user-visible
changes are:
1) more compact pretty-printing of parameters in print/summary of
(dep)mix objects (fo
On Wed, Oct 16, 2013 at 8:30 PM, Curtis Burkhalter
wrote:
> I try to use the mle2 function written for R. The error message states
> that the argument "minuslog1" is missing with no default, but I've
The argument is minuslogl
Note: l instead of 1
hth, Ingmar
_
depmixS4 can fit such models as a constrained latent markov mdoel,
best, Ingmar
On Fri, Jul 9, 2010 at 7:52 PM, Katherine Sanders <
sanders@buckeyemail.osu.edu> wrote:
> Does anyone know how to program mover stayer models in R? They are a type
> of Markov chain model where there is a group o
Donald,
Mixed types are handled in flexmix and in depmixS4, not sure about ordinal
in flexmix (depmixS4 does not handle ordinal but does handle multinomial,
constraints may be an
option to deal with ordinal); both have glm distributions, ie gaussian,
binary and many
others.
Best, Ingmar
On Sat, Ju
Software http://www.jstatsoft.org/v36/i07 which is also included as a
vignette http://cran.r-project.org/web/packages/depmixS4/index.html
The development version of depmixS4 can be found on the R-forge site:
https://r-forge.r-project.org/projects/depmix/
best, Ingmar Visser & Maarten Speekenb
Penny,
The ?makeDepmix page has an example of how to add your own response
distribution model.
hth, Ingmar
On Fri, Oct 22, 2010 at 3:08 PM, Penny Adversario wrote:
> I am running a latent class regression with 3 nominal and 2 ordinal
> variables using depmixS4 but the available response models d
Steffen,
Consider the input you have given to range:
> 1e-9:1
[1] 1e-09 1e+00
versus
> 1e-9:1e-3
[1] 1e-09
>
hth, Ingmar
On Wed, Nov 10, 2010 at 10:00 AM, Steffen Uhlig <
steffen.uh...@htw-saarland.de> wrote:
> Dear mailing list readers!
>
> Using R and the plot function I stumbled over this
Sebastian,
There is a number of packages that fit hidden (or latent) Markov models
which are in most regards identical to latent transition analysis.
Best, Ingmar
2011/1/24 Sebastián Daza
> Hi everyone,
> Does anyone know if there is a package to run Latent Transitional Analysis
> using R?
>
>
Martin,
On Wed, Aug 25, 2010 at 10:17 AM, Loos, Martin wrote:
> Good afternoon!
>
> It may seem trivial to some/most of You, but I found it difficult to
> properly include a C++-based .dll into a package that I want to build for
> usage in R. I read through the "Writing R extensions..." & "R adm
The sem package may be what you are looking for, hth, Ingmar
On Thu, Aug 26, 2010 at 9:24 PM, David Joubert wrote:
>
> Hello all-
>
> Just wondering if anyone has heard of a package performing latent factor
> analysis, similar to what is done with LatentGold. I know that PoLCA does
> latent clas
poLCA is an option, as is randomLCA, flexmix, and depmixS4, and there are
likely to be more
What specific models are you interested in?
Best, Ingmar
On Fri, May 6, 2011 at 6:13 AM, Wincent wrote:
> I guess LEM is a software for latent class analysis. If so, you may
> want to have a look at poLCA
depmixS4 can fit equality constraints in latent class and latent markov
models, best, Ingmar
On Wed, May 11, 2011 at 1:04 PM, David Duffy wrote:
> I don't know of any R package that can match all the functionality of LEM
> eg fitting equality constraints to model parameters a la LISREL.
>
> WRT
function ?stepFlexmix in the flexmix package may be what you're looking for
hth, Ingmar
On Mon, May 23, 2011 at 11:21 PM, Daniel Malter wrote:
> Hi,
>
> I perform latent class analysis on a matrix of dichotomous variables to
> create an indicator of class/category membership for each observation
something like this:
sapply(strsplit(as.character(
f1$keyword), " "), function(x){sum(nchar(x))})
hth, Ingmar
On Fri, Jun 10, 2011 at 6:48 PM, Abraham Mathew wrote:
> I'm trying to find the total number of letters in a row of a data frame.
>
> Let's say I have the following data frame.
>
> f1 <-
Daniel,
searching for 'latent class analysis' on
http://www.r-project.org/search.html
gives many results: the CRAN taskviews on psychometrics and the one on
clustering both contain relevant links to packages that may do what you are
looking for.
In particular, for general LCA there is package e107
The ML estimate of lambda is the mean, so no need for (iterative)
optimization. See eg:
http://mathworld.wolfram.com/MaximumLikelihood.html
hth, Ingmar
On Fri, Feb 11, 2011 at 8:52 AM, Antje Niederlein wrote:
> Hello,
>
> I tried to fit a poisson distribution but looking at the function
> fitdis
typing 'markov switching' into the R site search box gives 127 results,
certainly a few of which on the first page are possibly of interest to you.
among them packages MSBVAR and bayesGARCH
hth, best, Ingmar
On Sat, Feb 12, 2011 at 12:53 PM, Nanda Mendez wrote:
>
> I'm looking for Markov switchi
> FWIW, the style for JSS now enforces (via Achimitization) the use of quotes
> as you show above.
>
An excellent candidate for the fortunes package!
best, Ingmar
[[alternative HTML version deleted]]
__
R-help@r-project.org mailing list
https:
lavaan, sem, openMx all do this (there may be others)
hth, Ingmar
On Fri, Mar 11, 2011 at 8:26 AM, rvohen wrote:
> In R software,does it have packages about confirmatory factor analysis in R
> software? 3Q
>
> --
> View this message in context:
> http://r.789695.n4.nabble.com/confirmatory-factor
package msm has some examples with this type of type, ie modeling disease
state transitions in continuous time, using multi-state markov models.
hth, Ingmar
On Thu, Mar 24, 2011 at 6:22 PM, Rasanga Ruwanthi wrote:
> Dear List,
>
> I have some longitudinal data, each patient was followed at times
Michael,
It's not entirely clear what you are doing from the text (and the code is
incompplete), so just a few remarks.
I assume you are after the log likelihood rather than the likelihood
(otherwise the issue of positive/negative would not show up, dnorm always
returns positive numbers).
Taking
[plug to follow]
depmixS4 fits hidden/latent Markov models on (mixed mode) multivariate
longitudinal data (and it can be found on the cluster task view).
hth, Ingmar
On Thu, Jun 14, 2012 at 1:12 PM, ya wrote:
> Hi all,
>
> I have a question, is there any R package dealing with latent transition
Dear Edward,
Without knowing what you want exactly, it is basically impossible to help
you out.
The following code (with simulated data) works just fine. In what sense did
you not have success with HMM and/or depmixS4?
Best, Ingmar
library(HMM)
dat <- data.frame(Slide1_ACC=sample(c(0,1),100,rep=T
mething like this (untested):
x[x<23.65] <- 0
x[x>23.65] <- 1
will give you the markov state sequence and the transition matrix follows
from that.
hth, Ingmar Visser
On Fri, Jul 27, 2012 at 8:52 PM, cesare orsini wrote:
> Dear Users,
>
> i have this time series, the tree line
hard to judge what the problem is without an example and without the actual
error message that mlogit (which one? there are several functions with that
name in various packages) gives you.
best, Ingmar
On Mon, Jul 30, 2012 at 11:30 AM, Lee van Cleef wrote:
> Dear all,
>
> does anybody have exper
Lee,
A working, or in this case failing, example is necessary to detect what the
problem is.
This would include a statement loading the package that you use to run your
mlogit models; the latter is necessary because there are various packages
with functions that are called mlgoit.
Best, Ingmar
On
> It's fine. Just interpret them as you would any other (lower is better).
>>
>>
> And it is the printed logLik that is out of step here. log-likelihoods
> _should_ be negative.
>
That is not quite the case; in models with small variances log-likelihoods
can easily become positive, consider eg:
>
use str(dentistry.lca2) to see all values of the output; among them a value
np for number of parameters, in this case 5*2 for the 5 binary items of 2
classes + 1 for the class proportions, total 11.
hth, Ingmar
On Mon, Aug 27, 2012 at 6:05 PM, Gabriele Accetta <
gabriele.acce...@gmail.com> wrote:
Searching: time series forecasting
on the R website gives quite a few potentially useful options.
hth, Ingmar
On Wed, Nov 16, 2011 at 1:55 PM, Aher wrote:
> I have a data with the sequence of events with millions records and more
> than
> 24 time stamped variables.
>
> sample data:
> 1 2
I did not quite get what the problem was from your description ...
However, I did search on CRAN and found at least two packages that can fit
markov switching ar models so that may be an easier way to go.
Hth, Ingmar
On Thu, Dec 1, 2011 at 5:58 PM, napps22 wrote:
> Dear R users,
>
> I have been
Claus,
Given that you have observed the hidden states they are not really hidden
anymore ... so maybe an HMM is not what you are looking for.
Assuming that you had such super observation powers using something like:
by(obs,hid,table)
will get you the state dependent counts of the categories of
binomial coeffecients can be computed using ?choose
hth, Ingmar
On Wed, Dec 28, 2011 at 10:42 AM, Jason J. Pitt wrote:
> Hi Matilda,
>
> My ignorance of the mathematical properties of Pascal's
> Triangle might make me overlook a much easier way to do this,
> but my first brute force thought was
Th CRAN taskview on clustering has many clustering and mixture packages
which
may be useful for your precise situation:
http://cran.r-project.org/web/views/Cluster.html
hth, Ingmar
On Thu, Nov 10, 2011 at 7:41 PM, Dan Abner wrote:
> Hello everyone,
>
> Can anyone suggest a decently documented
Look into Sweave or knitr to combine R and LaTeX for producing reports.
hth, Ingmar
http://www.statistik.lmu.de/~leisch/Sweave/
https://github.com/yihui/knitr
On Sun, Apr 1, 2012 at 4:48 PM, Manish Gupta wrote:
> Hi,
>
> I am newbie in Latex and R. I am working on one report in which i need to
>
?clusters tells you how to get class membership for new data
(and the appropriate way of getting cluster membership is to use
clusters(newModel) rather newModel@clusters)
hth, Ingmar
On Tue, Feb 7, 2012 at 8:48 AM, loyolite270 wrote:
> Hi
>
> I built a flexmix GLM binomial model with 200 observa
?strptime is a good place to start
hth, Ingmar
On Wed, Feb 22, 2012 at 2:09 PM, arunkumar wrote:
> Hi
>
> My data looks like this
>
> startDate="2008-06-01"
>
> dateRange =c( "2008-10-01","2008-12-01")
> Is there any method to find the week number from the startDate range
>
> -
> Thanks
<- depmix(list(rt~1,corr~1),data=speed,transition=~Pacc+x2,nstates=2,
family=list(gaussian(),multinomial("identity")),ntimes=c(168,134,137))
set.seed(3)
fmod1 <- fit(mod1)
Above code produces sensible results.
Hth, Ingmar Visser
On Fri, Apr 20, 2012 at 5:14 AM, nglthu wro
Deepak,
On Wed, May 2, 2012 at 7:53 AM, deepakw wrote:
> Hi I am trying to use depmixS4 package. Based on the documentation, it
> seems
> that depmix allows one to fit an HMM model based on a training data with
> time-varying co-variates. However, I did not find any routines which can
> help tes
?by may be helpful here
eg if dat is your data.frame and yf is a factor (created using ifelse)
use by(dat,yf,mean) to compute the means for each level of yf
hth, Ingmar
On Jun 3, 2008, at 8:37 PM, Marvin Lists wrote:
Hi,
I have a data frame that I want to split into two based on the
values of
Hi,
I need to compute an array from a matrix and an array:
A <- array(1:20,c(2,2,5))
B <- matrix(1:10,5)
And I would like the result to be an array consisting of the following:
rbind(A[1,,1]*B[1,],
A[2,,1]*B[1,])
rbind(A[1,,2]*B[2,],
A[2,,2]*B[2,])
rbind(A[1,,3]*B[2,],
A[2,,3]*B[2,])
etc.
He
Hi,
I've been searching CRAN and the web for a recursive multivariate
filter with time-varying coefficients.
What I mean is the following:
I have a series of square matrices A_t
an initial value vector y_0
and I need to compute
y_t =A_t%*%y_t-1
As these y_t may diverge quickly and/or lead t
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> Fax (if absolutely necessary): +61 7 3826 7304
> Mobile: +61 4 8819 4402
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> mailto:[EMAIL PROTECTED]
> http://www.cmis.csiro.au/bill.venables/
>
> -Original Message-
> From: [EMAIL PR
95
>>
>> __
>> R-help@r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, mi
can I do about this?
Best, Ingmar
> sessionInfo()
R version 2.6.2 (2008-02-08)
powerpc-apple-darwin8.10.1
locale:
en_GB.UTF-8/en_GB.UTF-8/en_GB.UTF-8/C/en_GB.UTF-8/en_GB.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packa
> I have a problem concerning discrepances between R (which I use) and
> Statistica (which uses my supervisor).
---
can this be submitted as a fortune?
any other programs around that use supervisors, it's always good to
have a couple of
those around
ingmar
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>
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> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
> and provide commented, minimal, self-con
The CRAN task view on cluster and mixture models likely has what you
need.
hth, Ingmar
http://cran.r-project.org/web/views/Cluster.html
On Apr 10, 2008, at 11:20 PM, Antonio Olinto wrote:
> Hello,
>
> I'm analyzing some fish length-frequency data to access relative
> age and growth
> informa
leaps or regsubsets in the leaps package does subset regression which
seems to be what you're looking for.
hth, Ingmar
On Apr 19, 2008, at 11:51 PM, Computer- programmer wrote:
>
> Dear R helpers,
>I'm trying to fit a model for prediction, but I have 18
> variables to choose from. So, my
nt me
> to the post. Else any help/suggestions would be greatly appreciated.
>
> Many thanks in advance,
> tania
>
> D.Phil student
> Department of Physiology, Anatomy and Genetics
> University of Oxford
>
> __
> R-help@r-pro
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
> and provide commented, minimal, self-contain
rle(diff(sq)) could be helpful here,
best, Ingmar
On May 13, 2008, at 11:19 PM, Marko Milicic wrote:
Hi all R helpers,
I'm trying to comeup with nice and elegant way of "detecting"
consecutive
increases/decreases in the sequence of numbers. I'm trying with
combination
of which() and diff(
..
> {{dropped:13}}
>
> __
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
> and provide commented, minimal, self-c
lp@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
> and provide commented, minimal, self-contained, reproducible code.
Ingmar Visser
Department of Psychology, Univ
__
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> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-
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> and provide commented, minimal, self-contained, reproducible code.
Ingmar Visser
D
; http://www.wifo.ac.at/Serguei.Kaniovski
> [[alternative HTML version deleted]]
>
> __
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
>
R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
> and provide commented, minimal, self-contained, reproducible code.
Ingmar Visser
Department of Psychology, University of Amsterda
roduct 60] do not match the length of object [100]
In addition: Warning message:
In resid * wt^0.5 :
longer object length is not a multiple of shorter object length
Ingmar Visser
Department of Psychology, University of Amsterdam
Roetersstraat 15
1018 WB Amsterdam
The Netherlands
t: +
, Prof Brian Ripley wrote:
> Weights are not supported: multistratum aov is designed for
> balanced designs and uses projection for which weighting is
> inappropriate.
>
> On Wed, 17 Dec 2008, Ingmar Visser wrote:
>
>> Dear R-help,
>>
>> I'm facing a proble
ustering
taking dependencies over time into account by specifying a
transition matrix.
Similarly, there are other packages that fit similar models, searching
for hidden markov model provides a number of them.
hth, Ingmar Visser
On 12 Mar 2009, at 23:39, Prew, Paul wrote:
Hello All,
Does anyone know of
Dear Rita,
The depmixS4 package handles such models. It is still in beta testing
so I would
appreciate it if you share your experiences with it. Also let me know
if you have
further questions.
Best, Ingmar
On 16 Mar 2009, at 10:19, Rita Gaio wrote:
Dear R users,
I want to apply latent
;
> __
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
> and provide commented, minimal, self-contained, reproduci
t;> R-help@r-project.org mailing list
>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>> PLEASE do read the posting guide http://www.R-project.org/posting-
>>> guide.html
>>> and provide commented, minimal, self-contained, reproducible code.
>>
>>
rchive at Nabble.com.
>
> __
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
> and provide commented, m
rrespond to syntactically valid R code.
See the chapter 'Writing R documentation files' in manual 'Writing R
Extensions'.
Error in get(cname, where) :
promise already under evaluation: recursive default argument
reference or earlier problems?
Error: .onLoad failed in &#x
s welcome.
>
> Best regards,
>
> --
> Maura E.M
>
> [[alternative HTML version deleted]]
>
> __
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> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-
> gu
HMMs and is
>>> reasonably well documented. That might make it easier to get
>>> started.
>>>
>>> Thank you in advance for your attention and help.
>>> Kind regards,
>>>
>>
>>
>>
>> Alice Messenger ;-) chatti anche con
> Thank you in advance,
> Maura
>
> http://cat.inist.fr/?aModele=afficheN&cpsidt=18787092
> -Messaggio originale-
> Da: [EMAIL PROTECTED] per conto di Ingmar Visser
> Inviato: mer 12/11/2008 15.10
> A: Maura E Monville
> Cc: r-help@r-project.org
> Oggetto: Re: [R]
iling list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
> and provide commented, minimal, self-contained, reproducible code.
Ingmar Visser
Department of Psychology, University of
___
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
> and provide commented, minimal, self-contained, reproducible code.
Ingmar Visser
Depar
Googling for sphericity gives wikipedia as a first link which says:
Sphericity is a measure of how spherical (round) an object is.
The second hit gives the connection with statistics, in particular
ANOVA,
http://www.linguistics.ucla.edu/faciliti/facilities/statistics/spher.htm
hth, Ingmar
On S
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