search for: neurocognition

Dear R-help, I am interested in using structural equation modeling. Just getting started with it, but I'm looking for suggestions for packages. As an aside, what's the best way for looking for packages at CRAN? -- Robert Terwilliger Biomedical Physicist Laboratory of Neurocognitive Development Western Psychiatric Institute and Clinic University of Pittsburgh Medical Center Loeffler

Hello, I am a newbie to the lattice package in R, and I'm trying to make a plot using the xyplot function. I have repeated measures data (2 conditions) for two different groups of subjects (teens and adults). So far, I've made a basic graph using xyplot(y ~x, group=subnum, data=mydata, type="b"). Now I would like to make all the teens' lines one color and the adults'

...?? 2008??????????????????????? month????????? 12????????????????????????? day??????????? 22????????????????????????? svn rev??????? 47281?????????????????????? language?????? R?????????????????????????? version.string R version 2.8.1 (2008-12-22) Derek N. Eder Gothenburg University Vigilance and Neurocognition Laboratory Medicinaregatan 8B Gothenburg Sweden SE 405 30 tlf (031) 342-8261 mobil 0704 915 714 "All created things are impermanent ? Strive diligently."

...Error message is: (in French, my locale) Erreur dans eval(expr, envir, enclos) : objet 'var' introuvable (my personal translation in English) Error in eval(expr, envir, enclos) : object 'var' not found Thank you, Matthieu Matthieu Dubois Post-doctoral fellow Psychology and NeuroCognition Lab (CNRS UMR 5105) Université Pierre Mendès-France BP47 --- 38040 Grenoble Cedex 9 --- France Email: matthieu.dubois@upmf-grenoble.fr Gmail: matthdub@gmail.com http://web.upmf-grenoble.fr/LPNC/membre_matthieu_dubois [[alternative HTML version deleted]]

...he number of 100-nanosecond intervals since January 1, 1601 (UTC). That is not a typo, the year is 1601. Does anyone have a clue(or algorhithm)for how this is converted to something a little more POSIX-like ? Thank you, Derek -- Derek N. Eder Gothenburg University VINKLA - Vigilance and Neurocognition laboratory SU/Sahlgrenska Utvecklingslab 1, Med Gr?na str?ket 8 SE 413 45 G?teborg (Gothenburg) Sverige (Sweden) +46 (031)* 342 8261 (28261 inom Sahlgrenska) +46 0704 915 714 (mobile) +46 (031) 25 97 07 (home) * omit the 0 when calling from outside Sweden personal web page: www.derek-eder.org

...r adjustments in time ("spring forward, fall back"): Is there a way of automatically recovering the local time adjustments for a given date? E.g., a date/time in springtime = GMT +2 , else GMT +1 Thanks, Derek Eder -- Derek N. Eder Gothenburg University VINKLA - Vigilance and Neurocognition laboratory SU/Sahlgrenska Utvecklingslab 1, Med Gr?na str?ket 8 SE 413 45 G?teborg (Gothenburg) Sverige (Sweden) +46 (031)* 342 8261 (28261 inom Sahlgrenska) +46 0704 915 714 (mobile) +46 (031) 25 97 07 (home) * omit the 0 when calling from outside Sweden

...) Thank you, humbly yours, Derek Eder platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status major 2 minor 4.0 year 2006 month 10 day 03 svn rev 39566 language R version.string R version 2.4.0 (2006-10-03) -- Derek N. Eder Gothenburg University VINKLA - Vigilance and Neurocognition laboratory SU/Sahlgrenska Utvecklingslab 1, Med Gr?na str?ket 8 SE 413 45 G?teborg (Gothenburg) Sverige (Sweden) +46 (031)* 342 8261 (28261 inom Sahlgrenska) +46 0704 915 714 (mobile) +46 (031) 25 97 07 (home) * omit the 0 when calling from outside Sweden

...I can't figure out how to render these in a more readable format, e.g., "2006-10-04 23:12:93.191" (and I have tried to do my best searching the archives and help etc ...) Thank you most sincerely, Derek Eder -- Derek N. Eder Gothenburg University VINKLA - Vigilance and Neurocognition laboratory

Dear R Users, I am trying to plot a barchart with a line graph superimposed (using par(new=TRUE)). There are 12 bars and 12 corresponding points for the line graph. This is fine, except that I'm encountering two problems: 1) The position of the points (of the line graph) are not centred on the middle (horizontally) of each corresponding bar. In fact, whilst the first point is located on the