Displaying 20 results from an estimated 773 matches for "leuven".
2004 Apr 26
2
Spatial Autocorrelation for point data
...a the archives we found out that there is a package 'spdep' which uses
grid data for testing spatial autocorrelation.
Thanks a lot,
Jan
_______________________________________________________________________
Jan Verbesselt
Research Associate
Lab of Geomatics and Forest Engineering K.U. Leuven
Vital Decosterstraat 102. B-3000 Leuven Belgium
Tel:+32-16-329750 Fax: +32-16-329760
http://gloveg.kuleuven.ac.be/
2008 Aug 07
4
Obtaining the first /or last record of a subject in a longitudinal study
...the
last record of a subject in a longitudinal setup.
Normally in SAS one uses first.variable1 and last.variable1. So my question
is that is there an R way of doing this.
Regards,
--
Luwis Diya, Phd student (Biostatistics),
Biostatistical Center,
School Of Public Health,
Catholic University of Leuven,
U.Z. St Raphael,
Kapucijnenvoer 35,
B-3000 Leuven,
Belgium,
Cell: +32(0)497 22 94 83
Phone:+32(0)16 32 68 86 [Office]
Phone:+32(0)16 32 98 76 [Home]
Fax: +32(0)16 33 70 15
Email: luwis.diya@med.kuleuven.be
http://med.kuleuven.be/biostat/staff/LD.htm
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2006 Mar 02
2
'...' passed to both plot() and legend()
...ch i386
os mingw32
system i386, mingw32
status
major 2
minor 2.1
year 2005
month 12
day 20
svn rev 36812
language R
Thanks in advance for any hints,
Dimitris
----
Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven
Address: Kapucijnenvoer 35, Leuven, Belgium
Tel: +32/(0)16/336899
Fax: +32/(0)16/337015
Web: http://www.med.kuleuven.be/biostat/
http://www.student.kuleuven.be/~m0390867/dimitris.htm
Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm
2005 Feb 22
2
ERROR NaNs produced; when comparing two logistic regression models with the ANOVA CHI test
...roduced in: pchisq(q, df, lower.tail, log.p)
*Is this caused by the non-linearity of the data?
*How can I obtain a p-value?
Thanks,
Jan
_______________________________________________________________________
ir. Jan Verbesselt
Research Associate
Lab of Geomatics and Forest Engineering K.U. Leuven
Vital Decosterstraat 102. B-3000 Leuven Belgium
Tel:+32-16-329750 Fax: +32-16-329760
http://gloveg.kuleuven.ac.be/
2008 Apr 09
4
apply lm() for all the columns of a matrix
Hi all,
My question is not really urgent. I can write a loop and solve the
problem. But I know that I'll be in a similar situation many more times so
it would be useful to find out the answer
Is there a fast way to perform linear fit to all the columns of a matrix?
(or in the one dimension of a multi-dimensional array.) I'm talking about
many single linear fits, not about a multiple fit.
2003 Sep 10
1
geoR variogram problem
...ead in geodata, calculates the variogram using the
variog function and give in a uvec like uvec=seq(0,max,by=2.44), it only
starts giving results from distance=4.88 and ignores 2.44!
This wasn't the case in former versions of geoR. Is this done on purpose?
Why?
Tnx for your help,
Dave Nys
K.U.Leuven
Laboratory for Forest, Nature and Landscape Research
Vital De Costerstraat 102 B-3000 Leuven
Tel. +32 (0)16 329751 Fax. +32 (0)16 329760
email: Dave.Nys at agr.kuleuven.ac.be
2004 Jun 04
1
use of "rcorr.cens" with binary response?
...o define the input vectors? Is
"x" a vector with the fitted probabilities and "s" a vector containing
the observed response variable? Or does anybody know an alternative?
Any help would be greatly appreciated,
Thanks,
Tom
--
Tom Vanwalleghem
Physical and Regional Geography, K.U.Leuven
Redingenstraat 16
B-3000 LEUVEN
+32(0)16/326414
2005 May 13
1
DEV2bitmap: jpeg with res=400 not enough for CORELDRAW poster A0
...lors are not optimal.
How can I save pictures (colors/resolution) optimally for import into
CorelDraw for an A0 poster?
Pdf?/tiff?/bmp?/
Thanks,
Jan
_______________________________________________________________________
ir. Jan Verbesselt
Research Associate
Lab of Geomatics Engineering K.U. Leuven
Vital Decosterstraat 102. B-3000 Leuven Belgium
Tel: +32-16-329750 Fax: +32-16-329760
http://gloveg.kuleuven.ac.be/
2005 Apr 15
1
Range in probabilities of a fitted lrm model (Y~X)
...s to obtain min & max of the estimated probabilities of Y.
Could summary.Design() be used for that or is there another method/trick?
Thanks,
Jan
_______________________________________________________________________
ir. Jan Verbesselt
Research Associate
Lab of Geomatics Engineering K.U. Leuven
Vital Decosterstraat 102. B-3000 Leuven Belgium
Tel: +32-16-329750 Fax: +32-16-329760
http://gloveg.kuleuven.ac.be/
2009 Feb 17
1
Cross classified or Multiple membership or Hierarchical (3 level ) logistic models using Umacs
Dear R users,
I would like to fit cross classified or multiple membership logistic models
or a 3 level hierarchical logistic model using the Umacs package. Can anyone
advise me on how to proceed or better point me to examples of how its done.
Regards,
--
Luwis Diya,
Leuven Biostatistics and Statistical Bioinformatics Centre (L-BioStat),
Kapucijnenvoer 35 blok d - bus 7001,
3000 Leuven,
Belgium
Tel: +32 16 336886 or +32 16 336892
Fax: +32 16 337015
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2011 Feb 28
1
problem with ROCR
...lation of the RCOR package; any time I try to install it I get the error message: Error: package 'ROCR' was built before R 2.10.0: please re-install it.
What can I do to solve this problem?
Thank you
Kind regards
Dr. Matteo Pettinari
Senior Assistant
Cardiale Heelkunde
matteo.pettinari@uzleuven.be<mailto:matteo.pettinari@uzleuven.be>
tel +32 16 34 09 65
fax +32 16 34 46 16
UZ Leuven | campus Gasthuisberg | Herestraat 49 | B - 3000 Leuven | www.uzleuven.be<http://www.uzleuven.be/>
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2005 Feb 09
1
Plotting: Plot several axis at right hand side of the plot
...", ylab="")
par(new=T)
plot(timeserie4, type="b", col=4,yaxt="n", ylab="")
Thanks,
Jan
_______________________________________________________________________
ir. Jan Verbesselt
Research Associate
Lab of Geomatics and Forest Engineering K.U. Leuven
Vital Decosterstraat 102. B-3000 Leuven Belgium
Tel:+32-16-329750 Fax: +32-16-329760
http://gloveg.kuleuven.ac.be/
2009 Sep 11
1
Constructing variables conditional on two indicators
...m. The new variable X3 is then added to the data frame (and is the same for all rows with the same m indicator).
How can I program this efficiently without running loops?
Thanks in advance
Jo Reynaerts
Ph.D. student
LICOS Centre for Institutions and Economic Performance
Katholieke Universiteit Leuven
Debériotstraat 34/3511
B-3000 Leuven
Belgium
Jo.Reynaerts@econ.kuleuven.be<mailto:Jo.Reynaerts@econ.kuleuven.be>
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2012 Nov 08
1
Package "glmulti": Include a variable in ALL models
...2868636
16 models within 2 IC units.
67 models to reach 95% of evidence weight.
Convergence after 700 generations.
Time elapsed: 4.5986722668012 minutes.
Hopefully you can tell me what is wrong here.
Thank you very much in advance,
Kind regards,
Machteld
Machteld Vandecandelaere
University of Leuven - Centre for Educational Effectiveness and Evaluation
Dekenstraat 2, box 3773 - room VHI 2.43
B-3000 Leuven
Tel: + 0032 16 325 780
E-mail: Machteld.Vandecandelaere@ppw.kuleuven.be<mailto:Machteld.Vandecandelaere@ppw.kuleuven.be>
URL: http://ppw.kuleuven.be/o_en_o/COE
[[alternative HTML ve...
2006 May 12
3
Maximum likelihood estimate of bivariate vonmises-weibulldistribution
Thanks Dimitris!!! That's much clearer now. Still have a lot of work to
do this weekend to understand every bit but your code will prove very
useful.
Cheers,
Aziz
-----Original Message-----
From: Dimitrios Rizopoulos [mailto:Dimitris.Rizopoulos at med.kuleuven.be]
Sent: May 12, 2006 4:35 PM
To: Chaouch, Aziz
Subject: RE: [R] Maximum likelihood estimate of bivariate
vonmises-weibulldistribution
look at the following code:
library(copula)
par(mfrow = c(2, 2))
x <- mvdc(normalCopula(sin(0.5 * pi /2)), c("norm", "norm"),
list(list(m...
2018 Mar 07
1
gluster for home directories?
...y
5,6,7 years by replacing a few bricks each year. Next to providing
storage for home directories we would like to also use the hosts to run
VM's in a hyperconverged setup (with their storage as an additional
gluster volume on those bricks).
Regards,
Rik
--
Rik Theys
System Engineer
KU Leuven - Dept. Elektrotechniek (ESAT)
Kasteelpark Arenberg 10 bus 2440 - B-3001 Leuven-Heverlee
+32(0)16/32.11.07
----------------------------------------------------------------
<<Any errors in spelling, tact or fact are transmission errors>>
2007 May 20
2
Number of NA's in every second column
Hi R-users,
How do I calculate a number of NA's in a row of every second column in my
data frame?
As a starting point:
dfr <- data.frame(sapply(x, function(x) sample(0:x, 6, replace = TRUE)))
dfr[dfr==0] <- NA
So, I would like to count the number of NA in row one, two, three etc. of
columns X1, X3, X5 etc.
Thanks in advance
Lauri
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2003 Aug 21
2
Read date for timeserie object
...ble...(NA). You can
define start and end date Ok, and frequency= 365 is ok...but is it
possible that recognizes the gaps?
Thanks a lot,
Jan
________________________________________________________________________
__
Jan Verbesselt
Research Associate
Lab of Geomatics and Forest Engineering K.U. Leuven
Vital Decosterstraat 102. B-3000 Leuven Belgium
Tel:+32-16-329750
Fax: +32-16-329760
http://perswww.kuleuven.ac.be/~u0027178/VCard/mycard.php?name=janv
http://gloveg.kuleuven.ac.be/
________________________________________________________________________
__
2005 May 19
2
plot question
hi all:
xlim and ylim are used to define the interval limits of a plot. I'm interested in the scale of values between this limits.
suppose xlim=c(0,10)
we can have e.g.
0 5 10
0 2 4 6 8 10
0 1 2 3 4 5 6 7 8 9 10
which is the parameter that allows me to modify this?
thanks in advance
alexandre
2005 Jan 21
2
chi-Squared distribution in Friedman test
...lt;- pchisq(STATISTIC, PARAMETER, lower = FALSE)
but still I cant figure out why they are using this pschisq insted of dchisq. Sorry I am wrong!!
Thanking you
truly
Prasanna
>
>----- Original Message -----
>From: "Dimitris Rizopoulos" <dimitris.rizopoulos at med.kuleuven.ac.be>
>To: "Prasanna Balaprakash" <pbalapra at ulb.ac.be>
>Cc: <r-help at stat.math.ethz.ch>
>Sent: Friday, January 21, 2005 1:05 PM
>Subject: Re: [R] chi-Squared distribution
>
>
>> if you check ?qchisq, you'll see that the second
>
>My m...