Displaying 5 results from an estimated 5 matches for "metaanalyse".
2005 Sep 04
1
Question regarding lmer with binary response
...mer as well as using glmmPQL. I played around with the control
parameters and the methods (PQl, Laplace) in lmer without any effect.
I would really appreciate if someone could have a look into my data
and tell me what's going wrong here.
My R script and data can be found at:
http://www.metaanalyse.de/tmp/rhelp.R
http://www.metaanalyse.de/tmp/rhelp.txt
TIA,
Bernd
2005 Sep 21
1
Extending a data frame
Dear all,
all data I am talking about can be found at
<http://www.metaanalyse.de/tmp/test.dat>.
The R-code is located at <http://www.metaanalyse.de/tmp/test.R>
I'd like to plot the frequencies for status against year.
Typing table(tmp$year) it can be simple seen that some years are
missing, e.g. 1975-1978, 1981 etc.
Using xyplot to display the data I do...
2006 Aug 24
1
metaplot and meta.summaries
...nn=1/(PostVars[1,j]),
summlabel="Summary",
lwd=2, boxsize=1)
meta.summaries
--------------
What does it mean, when I get the warning message that NaNs were produced in "pchisq(q,
df, lower.tail, log.p)"? Is there something wrong with my data (there are no NAs in the
data)?
MetaAnalyse <- meta.summaries(CoeffVector,
StdErrorVector,
method = "random")
2007 Jun 17
1
[ggplot2] Change color of grid lines
..., I didn't found any solution for my problem which I
could hardly believe. I strongly suspect that it's my fault but would
appreciate any hint like RTFM on page XXX or so.
Thanks in advance,
Bernd
[1] The red arrows indicate what I mean by "white grid lines"
<http://www.metaanalyse.de/tmp/ggplot2.png>
[2] I found some reasons why Hadley Wickham prefers the default theme
at <http://finzi.psych.upenn.edu/R/Rhelp02a/archive/81812.html>, but
most of our journals reject the use of any gray shading.
2003 Nov 01
4
Beginner: Homogenity of Variances
Hello,
for my meta-analysis I try to test if two varainces are equal without
using the raw scores. I have is the SD's, N's and the Means.
I want to test the variances from dependent and independend
samples.
I assume I can use the var.test procedure for the independent
samples, but what about the dependent samples ? Has anyone an
idea how to realise this with R ?
Thanks in advance