Displaying 20 results from an estimated 35 matches for "roetersstraat".
2005 Mar 22
5
Convert timeseries to transition matrix
...t there are two transitions from 1 to 1, two from 1 to 2, three
from 2 to 1 and two from 2 to 2.
Using for loops etc this is of course no problem, but I am curious whether
there is a smarter solution.
Any hints appreciated, Ingmar
--
Ingmar Visser
Department of Psychology, University of Amsterdam
Roetersstraat 15, room 1009
1018 WB Amsterdam
The Netherlands
http://users.fmg.uva.nl/ivisser/
tel: +31-20-5256735
2008 Apr 07
2
tcltk issue remains
...-8/en_GB.UTF-8/C/en_GB.UTF-8/en_GB.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] spatial_7.2-40 RUnit_0.4.17 MASS_7.2-40 robustbase_0.2-8
Ingmar Visser
Department of Psychology, University of Amsterdam
Roetersstraat 15
1018 WB Amsterdam
The Netherlands
t: +31-20-5256723
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2008 Dec 17
1
repeated measures aov with weights
...lanced
Stratum 3: Within
Error in print.aov(xi, ...) :
dims [product 60] do not match the length of object [100]
In addition: Warning message:
In resid * wt^0.5 :
longer object length is not a multiple of shorter object length
Ingmar Visser
Department of Psychology, University of Amsterdam
Roetersstraat 15
1018 WB Amsterdam
The Netherlands
t: +31-20-5256723
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2003 Oct 07
1
(PR#4450)
...or = 6.2
year = 2003
month = 01
day = 10
language = R
Windows 2000 Professional (build 2195) Service Pack 4.0
Search Path:
.GlobalEnv, package:ctest, Autoloads, package:base
==========================================================
Raoul Grasman
Dept. Psychology, University of Amsterdam,
Roetersstraat 15,
NL-1018WB Amsterdam,
the Netherlands
2008 Mar 08
1
R cmd check error reg namespace
...' for 'methods'
Execution halted
The \usage entries for S3 methods should use the \method markup and not
their full name.
See the chapter 'Writing R documentation files' in manual 'Writing R
Extensions'.
Ingmar Visser
Department of Psychology, University of Amsterdam
Roetersstraat 15
1018 WB Amsterdam
The Netherlands
t: +31-20-5256723
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2003 Jun 30
2
repeatedly applying function with matrix-rows as argument
...s for the function. Is this possible? Thank you for your help in advance!
Kind regards,
Maarten
---------------------------------------------------------------------
Maarten Speekenbrink
Psychological Methodology
Department of Psychology, Faculty of Social and Behavioral Sciences
address: Roetersstraat 15, 1018 WB Amsterdam, Netherlands
tel: +31 20 525 6876 / +31 20 525 6870
fax: +31 20 639 0026
2005 May 03
1
Rd.sty error
...Has anyone seen this before and/or is it problematic? I'm not sure whether
the output suffers from this but it does create a problem with R CMD check
because tex produces a warning/error there.
any hints are welcome, ingmar
--
Ingmar Visser
Department of Psychology, University of Amsterdam
Roetersstraat 15, 1018 WB Amsterdam
The Netherlands
http://users.fmg.uva.nl/ivisser/
tel: +31-20-5256735
2005 May 06
2
bivariate normal cdf
-- R Help List --
I am looking for a bivariate normal cdf routine in R. I have some fortran routines for this, which appear to be based on 15-point quadrature. Any guidance/suggestions on making these in loadable R-functions would be appreciated.
Thanks,
Dan
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Daniel A. Powers, Ph.D.
Department of Sociology
University of Texas at Austin
2005 Jul 03
1
code for model-averaging by Akaike weights
Dear all,
does anyone have r code to perform model-averaging of regression
parameters by Akaike weights,
and/or to do all-possible-subsets lm modelling that reports parameter
estimates, AICc and number of parameters for each model?
I have been looking for these in the archive but found none.
(I am aware that many of you would warn me against these methods
advocated by Burnham and Anderson
2005 Sep 26
1
hidden markov models
Dear R community,
I am looking for an R package or other software to study hidden
Markov models. I need to be able to incorporate multivariate
emissions and covariates for the transition probabilities. The msm
package seems almost perfect for my purpose, but I do not think it
allows multivariate emissions.
I will be grateful for your suggestions.
All the best,
--
Emilio A. Laca
One
2007 Apr 16
1
flexmix glm warning
...s in a binomial glm! in: eval(expr, envir,
enclos)
2: non-integer #successes in a binomial glm! in: eval(expr, envir,
enclos)
Any help with interpreting these warnings is welcome.
Should I be worried about them?
Best, Ingmar
?
Ingmar Visser
Department of Psychology, University of Amsterdam
Roetersstraat 15
1018 WB Amsterdam
The Netherlands
t: +31-20-5256735
2007 Nov 16
2
creating discretized data
Hi, Ia m working in discretized data. Here my data:
x <- c(2,1,3, 5), and I want to make (0,1) data based on the length of
each component in x.
So the new data should like: y = (0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1). I spent
too much time with
"seq", "rep". Still didn't get it. Any help? Thanks
Ilham
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2005 Apr 28
1
help files and vignettes
...lly when updating them, adding functions and
so forth, this process of generating the Rd2.tex files and then copying and
pasting into the vignette source is quite tedious.
In short, is there a faster way of doing this?
best, ingmar
--
Ingmar Visser
Department of Psychology, University of Amsterdam
Roetersstraat 15, 1018 WB Amsterdam
The Netherlands
http://users.fmg.uva.nl/ivisser/
tel: +31-20-5256735
2005 May 22
3
constraints
...here a package in R that handles general linear (in-)equality + box
constrained optimization?
If it is not there, could anyone advise me which way to go?
And/or point me to packages that solve these problems partially?
best, ingmar
--
Ingmar Visser
Department of Psychology, University of Amsterdam
Roetersstraat 15, 1018 WB Amsterdam
The Netherlands
http://users.fmg.uva.nl/ivisser/
tel: +31-20-5256735
2007 Nov 23
2
rbinom with computed probability
Hello,
I have a loop with probability computed from a logistic model like this:
for (i in 1:300){
p[i]<-exp(-0.834+0.002*x[i]+0.023*z[i])/(1+exp(-0.834+0.002*x[i]+0.023
+z[i]))
x and z generated from normal distribution.
I get 300 different probabilities And I want to generate variables from
bernulli distribution
with P for every observation:
T[i]<-rbinom(1,1,p[i])
But i get missing
2005 Oct 31
1
information matrix in random effects model
...H_i are the contributions of each case to the Hessian matrix H.
Are these individual contributions computed somewhere in either of the
functions to estimate random effects models, and is it possible to extract
them somehow from the fitted objects?
ingmar
--
Ingmar Visser
Department of Psychology
Roetersstraat 15 (building A room 1009)
1018 WB Amsterdam
tel.: +31-20-5256735
2007 Dec 08
2
Function to tell you how an object is put together
Question: Suppose I have an arbitrary object. Is there a function which will
accept the object as an argument and sort of give the format of the object,
how it is put together, etc.? The analysis would include the attributes and
the names of the attributes. Also, things like whether or not the object is
an array; whether or not it is a matrix, etc.
Tom Jones
2007 Oct 24
3
multiply for vector in R
Dear All,
Is there a conmand to calculate the multiplication of the elements in a vector? For example:
a=c(1,2,3,4)
I want to get 1*2*3*4=24.
Because the dimension of the vector is high, I want to know there is a command for this task in R?
Thank you so much!
Kang
__________________________________________________
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2008 Apr 10
2
New user, requesting help with MAC installation of R
Hi:
Yesterday I downloaded R and got it up and running on my PC without a
hitch, not so when I tried to do the same on my Mac powerbook, using
Mac OSX: version 10.4.11.. I have virtually no experience, so I
can't tell what exactly went wrong.
At first it appeared that the software loaded correctly, it seemed
like I was able to install R , and I even successfully unpacked
the
2005 Feb 16
2
Positive log-likelihood in lme
Kia ora
I'm a using lme (from nlme package) with data similar to the Orthodont dataset and am getting positive log-likelihoods (>100). This seems usual and I wondered if someone could offer a possible explanation.
I can supply a sample dataset if requested, but I feel almost certain that this question has been asked and answered recently. However, I can find no trace of it in the mail