Displaying 5 results from an estimated 5 matches for "c2b".
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2010 May 31
1
Post-hoc tests for repeated measures in balanced experimental design
Hi,
I am performing experiments in the field of visual perception where
we often apply balanced designs. Within a group of normal subjects,
we vary different stimulus conditions (like contrast, luminance,
temporal frequency of stimulation) and derive some psychophysical or
electrophysiological results from our subjects. Often, the main
question is to test the effect of these parameters
2008 May 19
1
reshape a wide data frame from wide to a long format with metadata columns
...he long format.
#example data frame. NOTE column names contain metadata::
mediacont.21.MC1A contains treatment=mediacont, time=21, rep=MC1A
data1<-data.frame(cbind(name=0:10,
mediacont.21.MC1A=10:20,mediatreat.20.MD1A=30:40,
treat.20.T2C=50:60,treat.20.T2A=70:80,condtp.20.C2A=90:100,condtp.20.C2B=100:110,
mediacont.21.MC1B=120:130, mediacont.21.MC1B=130:140))
#example of reshape code that works, this creates a data frame with
single metadata column and unique ID column. I could use this and
create a loop to write metadata columns based on the metadata in the
time column. However if I unde...
2004 Sep 23
0
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2005 Aug 10
2
Creating new columns inside a loop
Ok, I know R isn't an optimal environment for looping (or so I've heard) but
I have a need to loop through columns of data and create new columns of data
based on calculations within rows...
I'm sure there's a help file, but I'm not sure what search terms to use to
find it! The problem is that these new columns need to have names that I can
later access... Like NewVar1,
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