for example...
x <- y <- seq(.1, 2, .1) ftn <- function(x, y) x - .25*x^2 z <- outer(x, y, ftn) persp(x, y, z, theta = 330, phi = 30) hth, Kingsford On Sun, Sep 6, 2009 at 8:28 AM, Steve Lianoglou<mailinglist.honey...@gmail.com> wrote: > Hi, > > On Sat, Sep 5, 2009 at 5:16 AM, gallon li<gallon...@gmail.com> wrote: >> Basially I have the observation for x, y, and z >> >> for each fixed z, the value of y moves from 0 to y0 as x moves from 0 to x0. >> I then move the curve for z from 0 to z0 and form a continuous surface. want >> to know if there is a way that R can replace my handdrawing. > > Do the examples in ?persp help? > > How about this example from the r graph gallery: > > http://addictedtor.free.fr/graphiques/graphcode.php?graph=42 > > I think lattice graphics also has functions to help plotting in 3d, > but I've never used it. I've only seen it in actio in the lattics vs. > ggplot series of posts on the learnr.wordpress.com blog (very > helpful). > > -steve > -- > Steve Lianoglou > Graduate Student: Computational Systems Biology > | Memorial Sloan-Kettering Cancer Center > | Weill Medical College of Cornell University > Contact Info: http://cbio.mskcc.org/~lianos/contact > > ______________________________________________ > 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.