Check out ?turnpoints in the pastecs library.
Try example(turnpoints) str(Nauplii.tp) to see the data structure you get back. It identifies the peaks and pits and other associated information. Date: Fri, 18 Jun 2004 11:23:54 +0200 From: jeroen clarysse <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Subject: [R] [Q] Newbie (continued.. at least I got R running allready :-) Hi all a week ago, I posted a newbie question in data smoothing & maximum-extraction with R. I got quite a lot of response, but I'm still kinda stuck with it... I'll restate the problem : i got a datafile with 2400 measuerements (every 250msec) of a CO2 measurement device, capturing the breath of a subject. I uploaded such a sample here : http://www.psy.kuleuven.ac.be/leerpsy/data.csv now I wish to figure out where each breath expiration ceiling takes place , as shown on this graph : http://www.psy.kuleuven.ac.be/leerpsy/graph.bmp I'm kinda stuck on how to get this running in R. I really hope someone can help me out. If you guys can get me running, I promise to promote R as often as I can here on our faculty (which still uses Statistica for almost everything) thanks a million in advance ! ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
