Displaying 20 results from an estimated 64 matches for "mclust".

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2004 Jul 24

3

help(package)->sink()

I wanted to direct packageInfo to a file, so I could add comments,
e.g., in MS Word. The following command stored the desired information
in an object:
mclustInfo <- help(package="mclust")
Then "mclustInfo" displays it on my screen. To direct it to a
file, I tried the following:
sink("mclust.txt")
mclustInfo
sink()
This sequence created an empty file "mclust.txt", while displa...

2005 Jul 19

1

Library mclust in 64bit compiled R

Hi, All;
I tried to use library mclust in 64-bit compiled R 2.0.1 but failed.
Installation went smoothly without any warning or error. However, when I
tried to use them with the following simple code, it crashed.
Library(mclust)
Dat <- c(rnorm(20, mean=0, sd=0.2), rnorm(30, mean=1, sd=0.2))
Ind <- Mclust(dat, 1, 5)$classification...

2008 Jul 21

1

Mclust - which cluster is each observation in?

I'm trying to test a method of identifying individuals (birds) based on
measured data (their calls).
I have test data from known individual birds, and I am using the Mclust
package to see if the program can correctly identify which calls come from
different birds.
So far, mclust has correctly ID'd the number of birds in the test data set
(i.e., the correct # of clusters). However I also need to correctly assign
each call to the right bird (i.e., data rows (calls...

2002 Feb 14

1

Subsets in mclust

Dear group,
I want to use the mclust package on large data, and therefore I want to use
a subset in the initial clustering phase. From help(mclust):
k: If `k' is specified, the hierarchical clustering phase will
use a sample of size `k' of the data in the initial
hierarchical clustering phase. The d...

2003 Nov 15

0

r 1.7.1, MacOS 9.2.2, mclust 2.0-2

To Whom It May Concern:
I am new to r and mclust, so this may be a silly question. It has
also been a lot of years since I have used unix regularly.
I have version 1.7.1 of r, precompiled for Classic Mac OS (I am
running 9.2.2 on a PowerBook G4).
I downloaded the precompiled version 2.0-2 of mclust for Classic MacOS.
The implementation of r...

2009 Dec 07

1

Sweave and license message when loading mclust package

When loading mclust, it shows a license agreement message. This
message shows up in my document when I use Sweave. I did the
following:
<<echo=FALSE,include=FALSE>>=
library(mclust)
@
Is this a problem with mclust, Sweave or with me? How can it be fixed?
Thanks for any suggestions!
Titus

2004 Oct 21

5

Cluster Analysis: Density-Based Method

Hi people,
Does anybody know some Density-Based Method for clustering implemented in R?
Thanks,
Fernando Prass
_______________________________________________________

2008 Mar 26

0

out of colors in Mclust with 12 clusters

I'm running Mclust 3.0 in R-2.7.0 and have run into a situation where
the optimal number of clusters, 12, seems to be greater than the number
of colors available to Mclust. The code below, which demonstrates
errors, does not if the max no of clusters is set at 10. sessionInfo,
after a restart of R and loading of...

2012 Nov 26

0

cluster analysis error - mclust package

I am following instructions online for cluster analysis using the mclust
package, and keep getting errors.
http://www.statmethods.net/advstats/cluster.html
These are the instructions (there is no sample dataset unfortunately):
# Model Based Clustering
library(mclust)
fit <- Mclust(mydata)
plot(fit, mydata) # plot results
print(fit) # display the bes...

2000 Dec 07

0

mclust was Re: R or Splus

> > However... I could become an R convert if I'm told it's
> >
> > a) mind-bogglingly simple to install on Win Nt
> > there are firm limits to my geek credentials
> > b) can handle cluster analysis with 2000 records (mclust, preferred,
> > although I'd take kmeans if nec'y). Splus 5.0 on the
> > Manchester Cray has been falling over on this, much to my great
> > annoyance, no matter how large a workspace I give mclust, hclust
> > or kmeans, etc.
>
> There is an mcl...

2003 Nov 15

0

r 1.7.1, MacOS 9.2.2, mclust 2.0-2 (Update), lapackLib

I am new to r and mclust.
I have version 1.7.1 of r, precompiled for Classic Mac OS (I am running 9.2.2 on a PowerBook G4).
I downloaded the precompiled version 2.0-2 of mclust for Classic MacOS.
It appears (from the example I was using below) that I need a library called lapackLib. There does not appear to be a precomp...

2010 Sep 22

0

Help with mclust package

Hi,
I am trying to run th mclust package on a variable "Tuberculin indurations"
recorded as mm. The file has only one variable. When I run the package I get
NULL value for mu and sigma. Can anybody say why?
This is the program:
library("mclust")
mc<-Mclust(x.trab,G=1:9,warn=TRUE)
mc
mc$mu
sqrt(mc$sigm...

2009 Dec 04

0

flexmix and mclust help

Hello,
I'm trying out flexmix and mclust for the first time on some univariate data
which is typically best described as lognormal, but can sometimes be gamma
distributed as well. I first tried using EM on mclust assuming the data was
lognormally distributed and could only get it to work in "E" mode, i.e. the
equal variance mode...

2007 Jun 28

0

prior covariance in Mclust

Hello,
I'm trying to use Mclust to fit a Gaussian Mixture Model to a
mulitdimensional data set.
Because of the specific source of my data, I know that all components
have the same variance and that the covariance between dimensions is
zero (modelname=VII).
Furthermore, I have a reliable estimate of the variance of the component...

2004 May 06

0

Problem with mclust surfacePlot function

I am trying to follow the mclust examples in "MCLUST: Software for Model
Based Clustering, Density Estimation and Disriminant Analysis" by Chris
Fraley and Adrian Raftery, but I cannot reproduce the density and
uncertainty surfaces for the Lansing Woods maples. I am using R 1.8.1 with
the code below. The same code work...

2005 Oct 22

0

package mclust: cdens, EMclust?

Dear Knowledgeable R Community Members,
Please excuse my ignorance -- I apologize in advance
if this is an easy question, but I am a bit stumped
and could use a little guidance regarding parameters
in 2 functions in the "mclust" package.
--------------------
PROBLEM DESCRIPTION
--------------------
I have a finite mixture modeling problem -- for
example, a 2-component gaussian mixture -- where the
components have a large overlap, and I am trying to
use the "mclust" package to solve this problem.
I need...

2007 Mar 23

0

plotting dnorm() issued from mclust models

Dear all
I have a problem in fitting lines() of the normal distributions
identified with Mclust on a histogram or a mclust1Dplot. Here is some
sample code to explain :
set.seed(22)
foo <- c(rnorm(400, 10, 2), rnorm(500, 17, 4))
mcl <- Mclust(foo, G=2)
mcl.sd <- sqrt(mcl$parameters$variance$sigmasq)
mcl.size <- c(length(mcl$classification[mcl$classification==2]),
len...

2007 Oct 17

0

question about mclust and prior probabilities

I'm sorry, this is probably a very simple question. I am relatively
new to R and am having difficulty understanding how to use the mclust
options to change the prior probabilities for a mixture model.
I am dealing with a situation where I have 2 groups of data and it is
known that the sample sizes are different in the population. I want to
incorporate the probability associated with each group into the mixture
model to obtain b...

2010 Jan 06

1

positive log likelihood and BIC values from mCLUST analysis

My question is with respect to mCLUST and the values of BIC and log
likelihood. The relevant part of my R script is:
######################### BEGIN MDS ANALYSIS #########################
#load data
data <- read.table("Ecoli33_Barry.dis", header = TRUE, row.names = 1)
#perform MDS Scaling
mds <- metaMDS(data, k =...

2008 Jun 12

0

using MCLUST package to estimate a poisson-gaussian process

...ise, this should not include the
conditional probabilities for the noise component.
I am confused...
Also how to specify the model-specified parameters in the em() function
besides just mean and variance? what if i want to estimate the mean
reverting speed??
Can anyone share the experience of using MCLUST package to estimate
poisson-gaussian process?
THanks!
Tessa
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