Displaying 20 results from an estimated 29 matches for "clus".
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2004 May 12
1
How to know the row number of raw matrix after r
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2005 Apr 12
1
calling svydesign function that uses model.frame
...ction in the survey package
(although this error appears not to be specific to svydesign). I am
passing parameters incorrectly but am not sure how to correct the
problem.
## Call the main function PS.sim (one of mine). The dots are
parameters I omitted to simplify the question.
## y.col, str.col, clus.id, and PS.col are names of columns in the
object pop.
PS.sim(pop=small, y.col="NOTCOV",
...,str.col="new.str", clus.id="new.psu",
PS.col="PS.var", ...)
## A data.frame called sam.dat is generated by PS.sim. Its first 3
lines are:
ID new.str PS.var...
2004 May 12
2
How to know the row number of raw matrix after resampling?
...rix. I would like to know the row
number of RESA matrix's value in DATA matrix.
For example, RESA[1,1] = -2.0314185 and its row number in DATA matrix is 1.
RESA[1,3]=4.9131070 and its row number in DATA matrix is
10.
Is there a simple way to know the row number?
I
> clus
col1 col2 col3 col4 col5
[1,] 1 1 1 1 1
[2,] 2 2 0 2 1
[3,] 2 1 1 2 2
[4,] 1 2 2 1 2
[5,] 3 1 2 2 3
[6,] 3 3 0 3 2
[7,] 1 3 2 0 0
Second, I want to count columns of each row withou...
2006 Jan 07
1
Clustering and Rand Index
...orrectly use
cl_ensemble and cl_agreement (package: clue). Here is what I am trying
to do:
library(clue)
## Let p1..p4 be four partitions of the kind
p1=c(1,1,1,2,2,2,3,3,3)
p2=c(1,1,1,3,2,2,3,3,2)
p3=c(1,2,1,3,1,3,1,3,2)
p4=c(1,2,1,3,1,3,1,3,2)
Each object within the partitions is assigned to cluster 1,2,3
respectively. Now I have to create a cl_ensemble object, so that I can
calculate the Rand index:
ens <- cl_ensemble(list=c(p1,p2,p3,p4))
which only leads to
"Ensemble elements must be all partitions or all hierarchies."
Although I understand that p1..p4 are vectors in thi...
2000 Apr 27
1
reading in columns of a data set as factors
Dear people,
I've spent some time trying to find a simple way to do the following. I
can certainly think of complicated ways to do it...
I have a data set of 99 columns and 2000 rows. Each row corresponds to an
individual item of data, each column corresponds to a variable. I want
this data to be read into a data frame. The first 66 columns are binary,
values 0, 1, and I want these to be
2000 Mar 28
1
the function lme in package nlme
Dear people,
A somewhat clueless question follows:
I just discovered that the lme function in contrib package nlme for R,
while similar to the lme function in Splus, does not use the cluster
function option. This difference does not appear to be documented in the
V&R `R Complements' file.
I have data which is divided into 6 groups
The lme model is of the form (simplified from the actual model a bit)
y = a + b x_{ij} + \alpha_i + \beta_i x_{ij} + \epsilon_{ij}
i = 1,...,...
2011 Jan 13
1
how to calculate the consistency of different clusterings
Dear R-listers,
I do clustering on tens of individuals by thousands of traits. I have
known the assignment of each individual. I want to classify the
individuals by randomly resampling different subsets of the traits,
for example, randomly resampling 100 traits for 100 times, then 200
traits for 100 times, then 300 traits f...
2007 May 31
0
Using MIcombine for coxph fits
...'trt', 'trig')]
d[d==-9] <- NA
d[,c(4,5,7)] <- lapply(d[,c(4,5,7)], FUN=as.factor)
str(d)
summary(d)
---------------
Second, since there is missing data for several (but not all) of the
variables, investigate the patterns.
---------------
library(Hmisc)
na.pattern(d)
clus <- naclus(d, method='complete')
par(mfrow=c(2,2))
naplot(clus, which='all')
print(clus)
detach(package: Hmisc)
---------------
After examining the missing data patterns, impute 10 datasets using the
amelia function from the Amelia package. Check the densities of the
continuous v...
2008 Mar 19
1
betabinomial model
Hi,
can anyone help me fit betabinomial model to the following dataset where
each iD is a cluster in itself , if i use package aod 's betabinom model it
gives an estimate of zero to phi(the correlation coeficient ) and if i fix
it to the anova type estimate obtained from icc( in package aod) then it
says system is exactly singular. And when i try to fit my loglikelihood by
wr...
2012 Sep 14
0
rcdk package, fingerprint without name?
Hi!
I have a question concerning the rcdk package:
I generated a test sdf-file with 3 molecules in it and tried to perform clustering by fingerprints and plot the results in a dendogramm.
This is what I did:
mols <- load.molecules ("molecules.sdf")
fp.list <- lapply (mols, get.fingerprint, 'maccs')
fp.dist <- fp.sim.matrix (fp.list, method='tanimoto')
fp.dist <- as.dist(1-fp.dist=
cl...
2013 Nov 16
0
selecting optimal cluster validation score
Hi:
I have calculated the Silhouette score and Dunn score after
hierarchical clustering for 3 clusters:
#Distance measure
d <- dist(USArrests, method = "euclidean")
#Hierarchical clustering
hc <- hclust(dist(USArrests), "ave")
#calculating silhouette value for 3 clusters
sil<- silhouette(cutree(hc, k=3), d)
#calculating Dunn index for 3 clusters
clu...
2003 Sep 08
2
Re: clustering polypeptide sequences
...555
b0009 -0.013334 0.046154
b0010 0.952128 0.143617
suppose you have these data into a data frame called myseqs [see the R
documentation in how to upload these data, you can try > myseqs <-
edit(read.table()) ]
# you need to load the necessary libraries
library(mva) # basic clustering
library(cluster) # more clustering algorithms
# then you need to calculate the 'distances' between sequences
myseqs.d <- dist(myseqs) # this creates the euclidean distance matrix, try
help(dist) for more info
# then we perform a hierarchical cluster
myseqs.clus <- hclust(m...
2004 Nov 24
2
Mbuf errors
Hi All,
Mysql service is going down continously in my system due to lack of memory
space.
I checked the messages log and found the following error message.
All mbuf clusters exhausted, please see tuning(7).
I have no idea about mbuf cluster. Can anyone please help me to fix the issue.
I hope the information below will help you.
Following is the output of top.
last pid: 84718; load averages: 2.56, 2.29, 2.55
up...
2019 Jan 13
2
Cómo replicar unos clusters según sistema anterior.
Puede que no me haya expresado certeramente. Es lo que pasa al tocar de
oído.
Tengo unos datos (df) de los que se alguien calculó unas distancias
(dis.df) de las que se hicieron/hacen unos clusters (plot.clus.dis.df).
Todo esto usando un programa on line al que no tengo acceso para ver cómo
hace los cálculos.
Yo tengo los datos, y el programa también me da la matriz de distancias.
Quiero, además, tener los clusters (no el dibujo, si no el elemento:
elemento <- hclus(dis.df))
Pero el e...
1998 Jul 31
0
R-beta: Re-installing libraries in a new version.
...when upgrading:
Is there an easy way to take the libraries I have been using in the
older version and pull then into the new version. My organization looks
like this on Solaris 2.5.2:
/opt -- /R
-- /R-0.62.1
--/library
-- subdirectories for lots of packages like:
MASS, clus, lme, VR, date, design, mva
WaveThresh, splines, acepack, eda, stepfun,etc.
-- /R-0.62.2
--/library
-- base, mva, eda, stepfun
I would like to move the other libraries from
/opt/R/R-0.62.1/library to /opt/R/R-0.62.2/library and install them.
Doe...
2003 Dec 11
0
AW: Paper on PAM and Clara
Maybe the following article is of interest for you (co-authored by P.J. Rousseeuw, like the book you mentioned):
http://www.jstatsoft.org/v01/i04/paper/clus.pdf
-Heinrich.
> -----Urspr?ngliche Nachricht-----
> Von: r-help-bounces at stat.math.ethz.ch
> [mailto:r-help-bounces at stat.math.ethz.ch] Im Auftrag von Fucang Jia
> Gesendet: Donnerstag, 11. Dezember 2003 14:37
> An: r-help at stat.math.ethz.ch
> Betreff: [R] Paper on PAM a...
2005 Jun 27
1
A. Mani : colours in Silhouette
Hello,
In cluster analysis with cluster, how does one colour the silhouette
plots ? For example in using pam. There seems to be some problem there.
Everything else can be coloured.
Thanks,
A. Mani
Member, Cal. Math. Soc
2005 Jun 28
0
R-help Digest, Vol 28, Issue 28
...sc_gs at vsnl.net>, <r-help at stat.math.ethz.ch>
> Message-ID:
> <4702645135092E4497088F71D9C8F51A128BAF at afhex01.dpi.wa.gov.au>
> Content-Type: text/plain; charset="iso-8859-1"
>
> It's not so much a problem, as not working the way you expected.
> cluster:::plot.partition is used to do the plotting. If you look at the
> code for this you can see the difficulty in putting every possible
> permutation into the code. If for example you want the silhouette plot to
> be red using col = "red" is not intuitive as the cluster plot (whi...
2004 Mar 22
2
Handling of NAs in functions lrm and robcov
Hi R-helpers
I have a dataframe DF (lets say with the variables, y, x1, x2, x3, ...,
clust) containing relatively many NAs.
When I fit an ordinal regression model with the function lrm from the
Design library:
model.lrm <- lrm(y ~ x1 + x2, data=DF, x=TRUE, y=TRUE)
it will by default delete missing values in the variables y, x1, x2.
Based on model.lrm, I want to apply the robust cova...
2001 Aug 01
2
clustering question ... hclust & kmeans
I am using R 1.3.0 on Windows 2000.
For an experiment, I am wanting to find the most diverse 400 items to
study in a possible 3200 items. Diversity here is based on a few
hundred attributes. For this, I would like to do a clustering analysis
and find 400 clusters (i.e. different from each other in some way
hopefully). From each of these 400 clusters, I will pick a
representative. I expect many of these clusters will have just one
item. I am planning to do this using a variety of different clustering
methods.
What I a...