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. -------------- next part -------------- A non-text attachment was scrubbed... Name: draw0001.pdf Type: application/pdf Size: 292083 bytes Desc: not available URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20090905/cd009e5f/attachment-0002.pdf>
how do I draw this surface -- hand drawn in the attachemtn
3 messages · gallon li, Steve Lianoglou, Kingsford Jones
1 day later
Hi,
On Sat, Sep 5, 2009 at 5:16 AM, gallon li<gallon.li at 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
1 day later
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.honeypot at gmail.com> wrote:
Hi, On Sat, Sep 5, 2009 at 5:16 AM, gallon li<gallon.li at 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
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