Displaying 20 results from an estimated 700 matches similar to: "a. crossing branches with hclust, b. plot.dendrogram"
2004 Oct 11
2
hclust title and paste - messed up
I use the following code to scan a (limited) parameter space of clustering
strategies ...
data <- read.table(...
dataTranspose <- t(data)
distMeth <- c("euclidean",
"maximum",
"manhattan",
"canberra",
"binary"
)
clustMeth <- c("ward",
2002 Mar 26
1
comparing row by row in matrix
I don't know the Russell-Rao coefficient but maybe this will help:
You can compute the number of times y and x are both 1 (that's what your
function f does) by counting 1s in y*x, i.e., sum(y*x), aka t(y)%*%x.
Ordinary matrix multiplication does this row-by-column, so if M and N are
two binary matrices, M%*%t(N) will have (i,j) entry equal to the count of 1s
in common to row i of M and
2002 Jan 27
1
DBM databases for R?
Hello!
Can I use DBM databases (as they are used in Perl) for the import of
large datasets in R?
Thanks in advance for your help,
Petra Steiner
-
---------------------------------------------------
Petra Steiner
Arbeitsbereich Linguistik
Universitaet Muenster
Huefferstrasse 27
48149 Muenster
2002 Apr 07
3
German umlaut in xlab
Dear all,
which font do I have to choose to use German umlauts at x/ylab in plot? Do I
have to change Rdevga; and how? Or should I use these Hershey vectors?
I looked quite a long time for a solution, which should be easy, so I
thought I'd better ask here.
Maybe some other people have already solved this problem.
Regards,
Petra
-
---------------------------------------------------
Petra
2005 Aug 25
1
box m-test
Hello everybody,
Is there in R a so called box m-test for testing the equality of the
variance/cov. matrix for checking on homoscedasticity? I could not find
it among the traditional packages for multivariate statistics...
Petra
--
Petra Wallem
Centro de Estudios Avanzados en Ecolog伱伃a & Biodiversidad (CASEB)
Departamento de Ecolog伱伃a
Facultad de Ciencias Biol伱伋gicas
Pontificia
2017 Oct 16
1
(no subject)
Hello again,
I'm glad to tell you that I fixed that error.
It was gcc compiler error and I found the solution right here:
https://askubuntu.com/questions/26498/choose-gcc-and-g-version
(this link was sent by Harutyun Khachatryan).
I changed the versions of gcc and g++ from 4.3 and 4.4 to 4.8 and 4.9 and
it worked.
I also posted the solution in the gist I've sent you before.
Thank you
2006 Jul 22
2
projection utility in ArcView
Hello to all, I am using ArcView 3.2 under Wine. For now I have been
able to do what I need, except for the projection utility... it seems
that I am missing some dll, but I have no clue which ones could be... If
somebody knows the solution, please let me know. I am new to Wine, and
have no clue how to search for the right dll...
Thanks a lot to all of you and to this great Wine-project!!!
Petra
2012 Jan 10
4
Sum of a couple of variables of which a few have NA values
Dear everyone,
I have looked all over the internet but I cannot find a way to solve my problem.
In my data I want to sum a couple of variables. Some of these
variables have NA values, and when I add them together, the result is
NA
dat <- data.frame(
id = gl(5,1),
var1 = rnorm(5, 10),
var2 = rnorm(5, 7),
var3 = rnorm(5, 6),
var4 = rnorm(5, 3),
var5 = rnorm(5, 8)
)
dat[3,3] <- NA
dat[4,5]
2003 Jan 17
2
Linux permissions vs Samba permissions
Okay, admittedly I'm running an old version 2.0.5, but, why do I have to set
the eXecute permission in Linux before Samba will let a Windows client see
any files? Why would execute have anything to do with read and/or write? I
would think I could set -rw-rw---- or -rw-rw-rw- and be just fine, but oh
no, you get an empty list and cannot create new files until I change it
to -rwxrwx--- or
2001 Jun 12
1
cophenetic matrix
Hello,
I analyse some free-sorting data so I use hierarchical
clustering.
I want to compare my proximity matrix with the tree
representation to evalute the fitting. (stress, cophenetic correlation
(pearson's correlation)...)
"The cophenetic similarity of two objects a and b is defined as the
similarity level at wich objects a and b become members of the same
cluster during the course of
2002 Jan 09
1
Distance matrix by cosine?
Hello,
a. is there a possibility to obtain a distance matrix with the cosine between vectors?? hclust, hierclust, dist will not work and seem to be hard to extend.
b. if there is not: Is the cosine between vectors implemented somewhere?
Thanks for all hints and advice!
Petra Steiner
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2009 Apr 20
1
bladder1 dataset in survival library
Hello,
In package survival should be a dataset bladder1.
http://stat.ethz.ch/R-manual/R-devel/library/survival/html/bladder.html
I can not open it (not found).
Both bladder and bladder2 are there.
Thanks,
Petra
2005 Dec 26
3
factorial anova
Hello every body, I am trying to do a factorial anova analysis
following this model:
model<-anova(lm(responsevariable~factorA*factorB))
model<-anova(lm(luz$dosel~luz$estado*luz$Bosque))
Df Sum Sq Mean Sq F value Pr(>F)
estado 1 6931.1 6931.1 41.6455 7.974e-06 ***
Bosque 1 36.6 36.6 0.2197 0.6456
estado:Bosque 1 36.6 36.6 0.2197 0.6456
Residuals
2003 May 09
1
correspondence analysis
Hi everybody, I am starting my friendship with R. Now I want to do a
Correspondence Analysis using the vegan library or multiv library. Both give
me the same results which differ from the ones I get running other programs
like Statistica... I wounder if there is a problem with my matrix. I have
cualitataive variable in the columns and sampling units in the rows... I
import my matrix into R
2010 Sep 13
0
[LLVMdev] Postdoc opening at ICSI
Sorry for the spam, but we're looking for a postdoc with compiler
expertise, and in particular LLVM, for ICSI's networking group. I
thought this list might have somebody interested in such a position:
http://www.icsi.berkeley.edu/about/netjob.html
Feel free to forward further.
Thanks,
Robin
--
Robin Sommer * Phone +1 (510) 722-6541 * robin at icsi.berkeley.edu
ICSI/LBNL *
2019 Apr 03
2
is it possible to create a snapshot from a guest residing in a plain partition ?
Hi,
i can store the disk of a guest in a plain partition which isn't formatted.
That's no problem, i did it already several times, although the promised speed increase didn't appear.
But is it possible to create from such a guest a snapshot in a .sn file using virsh ?
Regards,
Bernd
--
Bernd Lentes
Systemadministration
Institut für Entwicklungsgenetik
Gebäude 35.34 - Raum
2003 Aug 09
0
USB problems (I/O-Error => USB da(4) quirks, uscanner0)
Hi,
I have some problems with usb da and uscanner giving me I/O-errors.
This is on a ASRock K7VT2 board.
If there is anything else I could do (testing patches, providing further info),
please let me know.
4.8-STABLE from 04.08.2003:
- MBO USB-MultiCardReader 6-in-1 mount_msdos => Input/output error
- Epson Perfection 1260 Scanner scanimage --test => Error during device I/O
2002 Jan 25
1
Fw: Summary for Distance matrix by cosine?
Dear all,
below you find enclosed my message from January 9th and my program
(attention: beginner).
Thanks for both answers! a. However, as far as I know the cosine is not the
same as the Pearson correlation (only in special cases).
b. Reid Huntsinger's hint was very useful, however I had to transpose the
matrix first, for I want to calculate the distance of the _rows_.
Regards,
Petra
2017 Oct 15
2
(no subject)
Hello everyone,
I installed R and trying to install additional package: `rgl`. The problem
is, I keep getting this error:
installation of package ?rgl? had non-zero exit status
All warnings, installation log and R version info in available in my gist:
https://gist.github.com/mateuszcisek/2337bd92695b7ddf10bca10ea403c712 (it
was too long to use it all in the message).
I use Linux Mint 18.2.
2008 Dec 19
2
[Bug 536] C++ compilation failure when using the iptables header files
http://bugzilla.netfilter.org/show_bug.cgi?id=536
pavlin at icsi.berkeley.edu changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|trivial |blocker
Priority|P2 |P1
------- Comment #1 from pavlin at icsi.berkeley.edu 2008-12-19