Displaying 20 results from an estimated 385 matches for "erasmus".
2003 Mar 25
4
R software for Hastie book
...er there is an R version of the S-Plus
software that can be downloaded from the website of the book
Elements of Statistical Learning by Hastie, Tibshirani and
Friedman?
Rob Potharst
--
**********************************************************
Dr. Rob Potharst
Lecturer in Computer Science
Erasmus University email: potharst at few.eur.nl
P.O. Box 1738 phone: +31.10.408.1343
3000 DR Rotterdam fax: +31.10.408.9167
the Netherlands home: +31.20.463.6694
homepage: http://www.few.eur.nl/few/people/potharst/
2006 Mar 26
1
as asked... i''m reporting an unexpected error
[root@erasmus tc]# /usr/sbin/xm top
Unexpected error: exceptions.OSError
Please report to xen-devel@lists.xensource.com
Traceback (most recent call last):
File "/usr/sbin/xm", line 10, in ?
main.main(sys.argv)
File "/usr/lib64/python2.4/site-packages/xen/xm/main.py", line 1021, in
ma...
2008 May 27
4
package functions documentation
...g R CMD check myPackage, I
get a warning message indicating that some of my functions are not
documented. How can I get rid of this problem? Of course, I don't want
to document every function in the package...
Thanks for your help.
--
David Ardia
H-building, room 11-26
Econometric Institute
Erasmus University
PO Box 1738
NL 3000 DR Rotterdam
The Netherlands
Phone: +31 (0)10 408 2269
2002 Feb 28
1
Profiles on Samba
...ed the profiles to be duplicated on the server.
I've commented the logon path line in smb.conf and tried 'logon path =
""'. It didn't seem to work.
Please help..
\\\'///
\\ ~ ~ //
( @ @ )
.----oOOo-----(_)-------------.
| Michael Erasmus |
| Systems Administrator |
| Barloworld Optimus |
| South Africa |
| MichaelE@execulink.co.za |
| http://www.execulink.co.za |
| Cell: +2783 276 0652 |
'---------------------oOOo----'
|__|__|
|| ||
oo...
2008 Apr 22
2
optimization and gradient
...hese quantities twice which slows down the procedure. How can I
get rid of that in a similar way as with 'nlmin' which allows the
attribute 'gradient' in the output of the objective function?
Thanks a lot for your answer
--
David Ardia
H-building, room 11-26
Econometric Institute
Erasmus University
PO Box 1738
NL 3000 DR Rotterdam
The Netherlands
Phone: +31 (0)10 408 2269
2010 Dec 01
1
attempted merge() returns: cannot coerce type 'closure' to vector of type 'any'
...)
[1] "matrix"
[1] "matrix"
Any idea why i cant use merge() in the normal way here? I'm forced to
add the column using:
temp.b <- cbind(x, y[match(rownames(x), rownames(y)),17])
All insights appreciated for this leaRner,
cheers,
Karl
--
Karl Brand <k.brand at erasmusmc.nl>
Department of Genetics
Erasmus MC
Dr Molewaterplein 50
3015 GE Rotterdam
P +31 (0)10 704 3211 | F +31 (0)10 704 4743 | M +31 (0)642 777 268
2005 Oct 18
1
Memory problems with large dataset in rpart
Dear helpers,
I am a Dutch student from the Erasmus University. For my Bachelor thesis I
have written a script in R using boosting by means of classification and
regression trees. This script uses the function the predefined function
rpart. My input file consists of about 4000 vectors each having 2210
dimensions. In the third iteration R complains o...
2009 Jan 26
0
AdMit version 1-01.01
...s as a Flexible Candidate Distribution for
Efficient Simulation: The R Package AdMit. Journal of Statistical
Software, 29(3), 1-32.
URL http://www.jstatsoft.org/v29/i03/.
Hoogerheide LF (2006). Essays on Neural Network Sampling Methods and
Instrumental Variables. Ph.D. thesis, Tinbergen Institute, Erasmus
University Rotterdam. Book nr. 379 of the Tinbergen Institute Research
Series.
Hoogerheide LF, Kaashoek JF, van Dijk HK (2007). On the Shape of
Posterior Densities and Credible Sets in Instrumental Variable
Regression Models with Reduced Rank: An Application of Flexible Sampling
Methods using Neur...
2009 Jan 26
0
AdMit version 1-01.01
...s as a Flexible Candidate Distribution for
Efficient Simulation: The R Package AdMit. Journal of Statistical
Software, 29(3), 1-32.
URL http://www.jstatsoft.org/v29/i03/.
Hoogerheide LF (2006). Essays on Neural Network Sampling Methods and
Instrumental Variables. Ph.D. thesis, Tinbergen Institute, Erasmus
University Rotterdam. Book nr. 379 of the Tinbergen Institute Research
Series.
Hoogerheide LF, Kaashoek JF, van Dijk HK (2007). On the Shape of
Posterior Densities and Credible Sets in Instrumental Variable
Regression Models with Reduced Rank: An Application of Flexible Sampling
Methods using Neur...
1997 Aug 08
12
Logon scripts
I am having difficulty getting my logon scripts to started when I logon. My
clients are Windows95, server is RedHat Linux 4.2, Samba 1.9.17alpha5.
This is my smb.conf file:
; *******************************************************************
; *
; * Samba config file for
; * Quinn P. Coldiron
; *
; *******************************************************************
;
2012 May 07
2
how to deduplicate records, e.g. using melt() and cast()
...;- data.frame(pathway = c("pw.A", "pw.B", "pw.C"),
cond.one = c(0.5, 0.4, NA),
cond.two = c(0.6, 0.9, 0.2),
cond.three = c(NA, 0.1, NA))
wanted.df
--
Karl Brand
Dept of Cardiology and Dept of Bioinformatics
Erasmus MC
Dr Molewaterplein 50
3015 GE Rotterdam
T +31 (0)10 703 2460 |M +31 (0)642 777 268 |F +31 (0)10 704 4161
2010 Dec 07
3
understanding output of tapply/by cumsum
...FUN = cumsum)
- attr(*, "class")= chr "by
---------
# these give (a) lists of one numerical vector(a)
Sn[5,2]
Sn[cbind(d$a,d$c)]
# how to access the individual cumsum values?
# and assign them to d$Sn?
--------------
Thanks,
Gerrit.
---
Gerrit Draisma
Department of Public Health
Erasmus MC, University Medical Center Rotterdam
Room AE-235
P.O. Box 2040 3000 CA Rotterdam The Netherlands
Phone: +31 10 7043787 Fax: +31 10 7038474
http://mgzlx4.erasmusmc.nl/pwp/?gdraisma
2010 Nov 09
3
Row-wise recurive function call
Dear Group,
I have a following dataset:
> a
A B C D
1 22 3 31 40
2 26 31 36 32
3 3 7 49 16
4 24 40 27 26
5 20 45 47 0
6 34 43 11 18
7 48 48 24 2
8 3 16 39 48
9 20 49 7 21
10 17 36 47 10
> dput(a)
structure(list(A = c(22L, 26L, 3L, 24L, 20L, 34L, 48L, 3L, 20L,
17L), B = c(3L, 31L, 7L, 40L, 45L, 43L, 48L, 16L, 49L, 36L),
C = c(31L, 36L, 49L, 27L, 47L, 11L, 24L,
2012 Apr 20
3
Matrix multiplication by multple constants
Dear R helpers
Suppose
x <- c(1:3)
y <- matrix(1:12, ncol = 3, nrow = 4)
> y
[,1] [,2] [,3]
[1,] 1 5 9
[2,] 2 6 10
[3,] 3 7 11
[4,] 4 8 12
I wish to multiply 1st column of y by first element of x i.e. 1, 2nd column of y by 2nd element of x i.e. 2 an so on. Thus the resultant matrix should be like
> z
[,1] [,2] [,3]
[1,] 1
2003 Aug 07
1
FreeBSD - Secure by DEFAULT ?? [hosts.allow]
...allow the other Services, in this order:
sshd : myhomepc : allow
exim : ALL : allow
httpd : ALL : allow
ftpd : ALL : allow
ALL : ALL : deny
What kind of protection does FreeBSD need by Default? Since OpenBSD goes
around saying: "SECURE BY DEFAULT" !?
Just asking.....
Regards
Schalk Erasmus
Incredible Networks
Windhoek, Namibia
2005 Aug 11
2
question
...:
cat("creating resolver data frame\n");
dfG<-cbind(dfG,2^(RGN$G))
dfR<-cbind(dfR,2^(RGN$R))
suddenly, creates values to inf.
Is the syntax changed for the ^ symbol in the latest R downloadable version?
Kind regards, wilfred
--
Dr. Ir. Wilfred Van IJcken
Labmanager Genomics
Erasmus Center for Biomics, Erasmus MC
P.O. Box 1738, 3000 DR Rotterdam
Dr. Molewaterplein 50, 3015 GE Rotterdam
The Netherlands
Tel +31 (0) 10 40 88 454
Fax +31 (0) 10 40 89 468
www.erasmusmc.nl/biomics <http://www.erasmusmc.nl/biomics>
2008 Apr 25
1
No rule to make target 'R/Copy'
...ke target 'R/Copy', needed in [...]
What does that mean? I can still compile other packages containing C
code, but not that one. No 00UNLOCK directory has been created . I am on
a IBM PC, and use windows XP.
Thanks for your help
--
David Ardia
H-building, room 11-26
Econometric Institute
Erasmus University
PO Box 1738
NL 3000 DR Rotterdam
The Netherlands
Phone: +31 (0)10 408 2269
2009 Feb 17
2
Efficient matrix computations
Hi,
I am looking for two ways to speed up my computations:
1. Is there a function that efficiently computes the 'sandwich product' of
three matrices, say, ZPZ'
2. Is there a function that efficiently computes the determinant of a
positive definite symmetric matrix?
Thanks,
S.A.
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2010 Oct 07
1
venneuler() - customize a few things.
...circle labels?
-suppress only certain circle labels?
-print specific text strings at specified locations within the circles?
and unions?
-specify circle colors?
-specify label font, size & color?
All thoughts and response's greatly appreciated, cheers,
Karl
--
Karl Brand <k.brand at erasmusmc.nl>
Department of Genetics
Erasmus MC
Dr Molewaterplein 50
3015 GE Rotterdam
P +31 (0)10 704 3409 | F +31 (0)10 704 4743 | M +31 (0)642 777 268
2013 Apr 18
1
snow: cluster initialization
...r of intervals
I also tried:
cl = makeCluster(rep('localhost', ncore), type='SOCK')
cl = makeCluster(rep('localhost', as.integer(ncore)), type='SOCK')
no luck.
Could anyone please help? Thanks!
Best regards,
Kaiyin ZHONG
------------------------------
FMB, Erasmus MC
k.zhong@erasmusmc.nl
kindlychung@gmail.com
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