Displaying 4 results from an estimated 4 matches for "circadian".
2008 Sep 03
1
statistical advice
Hello,
I am a researcher in sleep and circadian rhythms who is having much trouble
deciding on proper statistical analyses. Before I state my question, I
provide a brief synopsis of the looming problem; I am interested in activity
bout distributions across a 24 hr day. In addition to looking at the number
of activity bouts across the day, I am a...
2007 May 14
1
Nicely formatted summary table with mean, standard deviation or number and proportion
...FUN = g,
stat.name=c("n", "mean", "sd")))
treatment n mean sd
1 Drug 263 49.9 4.94
2 Placebo 237 50.1 4.97
>
> # this works but table is rotated, and it count data has to be
> # treated separately.
--
Keith Wong
PhD candidate
Sleep & Circadian Research Group
Woolcock Institute of Medical Research
email keithw at med.usyd.edu.au
Phone +61 2 9515 8981
Fax +61 2 9515 7070
Mail PO Box M77, Missenden Road NSW 2050, Australia
2009 Mar 07
6
using a noisy variable in regression (not an R question)
Hi, This is not an R question, but I've seen opinions given on non R
topics, so I wanted
to give it a try. :)
How would one treat a variable that was measured once, but is known to
fluctuate a lot?
For example, I want to include a hormone in my regression as an
explanatory variable. However, this
hormone varies in its levels throughout a day. Nevertheless, its levels differ
substantially
2008 Jul 28
12
Segfault with GridCellChoiceEditor
I have a problem.
In my application I have a few Grid objects in a Notebook. The Grid objects
are populated via GridTableBase. Certain Grid cells need to have a choice
interface (I''m artificially enforcing foreign key constraints). All this
works to the point where you try to edit the value for that cell. The
choice box renders (i.e. the drop down arrow appears) then the application