For drawing the arrows look at the my.symbols and ms.arrows functions in the TeachingDemos package. If you need help with determining the directions of the arrows, then perhaps the Ryacas package or other link to a mathematics package will help.
-- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare [EMAIL PROTECTED] (801) 408-8111 > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Jong-Hoon Kim > Sent: Wednesday, October 31, 2007 1:50 AM > To: r-help@r-project.org > Subject: [R] drawing direction fields > > Dear useRs, > > I am trying to draw direction fields for some differential equations. > So for I couldn't find much information on that. Could > anybody give me a hint how to draw a direction field using R? > > Jong-Hoon > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
