Displaying 8 results from an estimated 8 matches for "m1i".
Did you mean:
l1i
2012 Aug 22
1
(Slight) calculation discrepancy in escalc (metafor package)
...ed using the metafor package (version 1.6-0) in R (2.15.1,
64-bit Windows 7) and noticed that I was getting slightly different values
when I manually calculated the standardized mean difference versus what
escalc was giving me. Here''s a very simple example:
escalc(measure="SMD", m1i=5,m2i=10,n1i=5,n2i=5,sd1i=1,sd2i=2,vtype="LS")
The result is:
yi vi
1 -2.854599 0.8074367
However, if I calculate this manually using the pooled standard deviation
formula given in Cooper et al (2009)*, I get an SMD of -2.85625 and a
variance of 0.870205.
The formul...
2011 Jan 12
1
Metafor vs Meta vs Spreadsheet: wrong numbers
...ical issues, but for the random effect, the numbers are
considerably different. Unfortunately, I could not find where I made it wrong.
I would be grateful if someone would have a look at my calculations.
Here are the meta-analysis commands:
### USING METAFOR
library(metafor)
( dat<-escalc(m1i=m1i, sd1i=sd1i, n1i=n1i, m2i=m2i, sd2i=sd2i, n2i=n2i,
measure="SMD", data=metaData, append=T) ) # COMPUTE EFFECT SIZE
( res<-rma.uni(yi,vi,data=dat,method="HE", level=95) ) ### RANDOM EFFECT
( res<-rma.uni(yi,vi,data=dat,method="FE", level=95) ) ### FIXED EFFE...
2014 Nov 13
1
metafor - code for analysing geometric means
?Dear All
I have some data expressed in geometric means and 95% confidence intervals. Can I code them in metafor as:
rma(m1i=geometric mean 1, m2i=geometric mean 2, sd1i=geometric mean 1 CI /3.92, sd2i=geometric mean 2 CI/3.92.......etc, measure="MD")
All of the studies use geometric means.
Thanks!
Edward
----------------------------
[[alternative HTML version deleted]]
2018 Feb 17
0
[ANNOUNCE] libdrm 2.4.90
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Andrey Grodzovsky (2):
amdgpu: Update deadlock test to not assert on ECANCELED
amdgpu: Fix segfault in deadlock test.
Anuj Phogat (1):
intel: Add more Coffeelake PCI IDs
Bas Nieuwenhuizen (1):
drm: Fix 32-bit drmSyncobjWait.
Christian König (5):
amdgpu: fix 32bit VA manager max address
headers: sync up
2010 Jul 02
1
metafor and meta-analysis at arm-level
Hi,
I have been looking for an R package which allowed to do meta-analysis
(both pairwise and network/mixed-treatment) at arm-level rather than at
trial-level, the latter being the common way in which meta-analysis is
done.
By arm-level meta-analysis I mean one that accounts for data provided at
the level of the individual arms of each trial and that does not simply
derive the difference between
1997 Sep 12
0
Dynamic Configuration Values et al.
**
** I posted this message quite a time ago. Some people use my patch and I
** receive queries for a recent version from time to time. This patch didn't
** make it into the mainstream distribution yet. Sorry.
**
** This is the updated version for Samba-1.9.17p1.
**
Hello, people.
I have implemented some enhancements for Samba:
1. dynamic configuration-values
2. configurable
2012 Mar 25
2
avoiding for loops
I have data that looks like this:
> df1
group id
1 red A
2 red B
3 red C
4 blue D
5 blue E
6 blue F
I want a list of the groups containing vectors with the ids. I am
avoiding subset(), as it is
only recommended for interactive use. Here's what I have so far:
df1 <- data.frame(group=c("red", "red", "red", "blue",
2008 Jun 30
4
Rebuild of kernel 2.6.9-67.0.20.EL failure
Hello list.
I'm trying to rebuild the 2.6.9.67.0.20.EL kernel, but it fails even without
modifications.
How did I try it?
Created a (non-root) build environment (not a mock )
Installed the kernel.scr.rpm and did a
rpmbuild -ba --target=`uname -m` kernel-2.6.spec 2> prep-err.log | tee
prep-out.log
The build failed at the end:
Processing files: kernel-xenU-devel-2.6.9-67.0.20.EL
Checking