Displaying 11 results from an estimated 11 matches for "sozpsy".
2009 Dec 22
3
vector indexing problem in multilevel data: assigning a specific value to all group members
...te)
df <- as.data.frame(df)
df
rm(personId, groupId, groupLeader, someAttribute, leaderAttribute, df)
--
Dr. Bertolt Meyer
Senior research and teaching associate
Social Psychology, Institute of Psychology, University of Zurich
Binzmuehlestrasse 14, Box 15
CH-8050 Zurich
Switzerland
bmeyer at sozpsy.uzh.ch
tel: +41446357282
fax: +41446357279
2008 Aug 01
3
Newbie question: How to use tapply() on several vectors simultaneously
...oking for something that gives me
groupID V2 V3
1 1 -0.5915639 -0.6012890
2 2 -0.7404875 0.3733494
Any ideas?
Thank you very much,
Bertolt
--
Bertolt Meyer
Oberassistent
Sozialpsychologie, Psychologisches Institut der Universit?t Z?rich
Binzm?hlestr. 14, Box 15
CH-8050 Z?rich
bmeyer at sozpsy.uzh.ch
tel: +41446357282
fax: +41446357279
mob: +41788966111
2010 Aug 23
2
lmer() causes segfault
...Can someone tell me what I am
doing wrong? Any help is greatly appreciated.
With best regards,
Bertolt
--
Dr. Bertolt Meyer
Senior research and teaching associate
Social Psychology, Institute of Psychology, University of Zurich
Binzmuehlestrasse 14, Box 15
CH-8050 Zurich
Switzerland
bmeyer at sozpsy.uzh.ch
2008 Aug 28
4
Help with shading a polygon below a segment of a curve (normal distribution)
...this is not what I want; some area above
the line gets shaded, but not below. Can someone tell me what I am missing?
Thank you very much,
Bertolt
--
Bertolt Meyer
Oberassistent
Sozialpsychologie, Psychologisches Institut der Universit?t Z?rich
Binzm?hlestr. 14, Box 15
CH-8050 Z?rich
bmeyer at sozpsy.uzh.ch
tel: +41446357282
fax: +41446357279
mob: +41788966111
2008 May 25
1
marginality principle / selecting the right type of SS for an interaction hypothesis
...n where the standard way of calculating eta-square
for a factor by dividing its SS by the total SS cannot be applied?
Regards,
Bertolt
--
Bertolt Meyer
Senior Assistant
Psychological Institute, University of Zurich
Social Psychology
Binzmuehlestr. 14, Box 15
CH-8050 Zurich
Switzerland
bmeyer at sozpsy.uzh.ch
tel: +41446357282
fax: +41446357279
2005 Jun 07
6
transform large matrix into list
Dear List
I need to transform a large matrix M with many NAs into a list L with
one row for each non missing cell. Every row should contain the cell
value in the first column, and its coordinates of the matrix in column
2 and 3.
M:
x1 x2
y1 1 2
y2 4 5
y3 7 8
L:
v x y
1 1 1
4 1 2
7 1 2
2 2 1
5 2 2
8 2 3
I'm trying to do this with a loop, but since my matrix is quite large
(around
2005 Jun 02
3
merge large matrices
Dear List
I have two large matrices A and B. Both have the same dimensions, let's
say 20k x 30k. About half the cells of B are missing. Now I'm looking
for an efficient way to merge them, so that the missing values in B are
replaced by the corresponding values of A.
Matrix A
[,1] [,2] [,3]
[1,] 1 2 3
[2,] 4 5 6
merged with Matrix B
[,1] [,2] [,3]
[1,] 10 NA NA
[2,] NA 50 60
2010 Apr 03
0
Multilevel model with lme(): Weird degrees of freedom (group level df > # of groups)
...ere and would appreciate it
if someone could explain this to me... What am I missing?
Regards,
Bertolt
--
Dr. Bertolt Meyer
Senior research and teaching associate
Social Psychology, Institute of Psychology, University of Zurich
Binzmuehlestrasse 14, Box 15
CH-8050 Zurich
Switzerland
bmeyer at sozpsy.uzh.ch
tel: +41446357282
fax: +41446357279
mob: +41788966111
2011 Feb 03
2
how to read the "Sum Sq" - column from summary.aov()
...in a variable for later use? Like this:
>some.magic.command()
[1] 0.215 92.523
Thank you,
Bertolt
--
Dr. Bertolt Meyer
Senior research and teaching associate
Social Psychology, Institute of Psychology, University of Zurich
Binzmuehlestrasse 14, Box 15
CH-8050 Zurich
Switzerland
bmeyer at sozpsy.uzh.ch
2010 Aug 24
0
mlm for within subject design
...d uninstalling and re-installing Tinn-R to no avail. I
compared settings with a co-worker who is having no problems, and my
settings are the same.
--
Jim Holtman
Cincinnati, OH
+1 513 646 9390
What is the problem that you are trying to solve?
--Forwarded Message Attachment--
From: bmeyer at sozpsy.uzh.ch
To: r-help at r-project.org
Date: Mon, 23 Aug 2010 18:15:00 +0200
Subject: [R] lmer() causes segfault
Hello lmer() - users,
A call to the lmer() function causes my installation of R (2.11.1 on
Mac OS X 10.5.8) to crash and I am trying to figure out the problem.
I have a data set with lon...
2005 Jun 16
1
regressing each column of a matrix on all other columns
DeaR list
I would like to predict the values of each column of a matrix A by
regressing it on all other columns of the same matrix A. I do this with
a for loop:
A <- B <- matrix(round(runif(10*3,1,10),0),10)
A
for (i in 1:length(A[1,])) B[,i] <- as.matrix(predict(lm( A[,i] ~
A[,-i] )))
B
It works fine, but I need it to be faster. I've looked at *apply but
just can't