Re: [R] 3-D response surface using wireframe()

David Winsemius Wed, 07 Apr 2010 18:23:52 -0700


On Apr 7, 2010, at 8:58 PM, array chip wrote:

With the help document, i finally find a set of values of for x=,y=and z= in "screen" argument that gives me the correct rotation ofthe plot. But now it plots x and y axis (tick marks and labels)along the top of the plot. Is there one way to plot x and y axis onthe bottom of the plot?

Look at the scpos argument to specify the scales location. (Stilllacking an example and therrefore doing this from memory.)


--
David


Thanks

John

--- On Wed, 4/7/10, David Winsemius <dwinsem...@comcast.net> wrote:

From: David Winsemius <dwinsem...@comcast.net>
Subject: Re: [R] 3-D response surface using wireframe()
To: "array chip" <arrayprof...@yahoo.com>
Cc: r-help@r-project.org
Date: Wednesday, April 7, 2010, 8:07 AM
A search with the following
strategy:

RSiteSearch("lattice wireframe rotate axes")

Followed by adding requests to search earlier years'
archives produced this link which has a further link to a
document that answers most of your questions, at least the
ones that are comprehensible:

http://tolstoy.newcastle.edu.au/R/e2/help/07/03/12534.html

--David.

On Apr 6, 2010, at 7:12 PM, array chip wrote:

I am working on plotting a response surface using

wireframe(). The default style/orientation is


        z
        |
        |
y       |
\       |
\      |
  \     |
   \    |
    \   |
     \  |
      \ |
       \|________________x
        0

Now what I want the orientation of axes is:

/0\

/   \

   /     \

/       \

   /         \

           z

Two z axes? How interesting!


My understanding is that the screen=list(z=,y=,x=)

control the orientation of axes, but even after reading the
help page of screen argument, I still don't understand how
to use it.


screen: "A list determining the sequence of rotations

to be applied to the data before being plotted. The initial
position starts with the viewing point along the positive
z-axis, and the x and y axes in the usual position. Each
component of the list should be named one of "x", "y" or "z"
(repititions are allowed), with their values indicating the
amount of rotation about that axis in degrees."


Can anyone explain to me how the screen argument

works? And what values (x,y,z) I should choose for the
orientation that I want?


Another question is wireframe(0 will draw all 8 edges

of the cubic by default, is there anyway that I can control
what edges I can draw, what I can hide?


thanks very much!

John

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David Winsemius, MD
West Hartford, CT


David Winsemius, MD
West Hartford, CT

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and provide commented, minimal, self-contained, reproducible code.

Re: [R] 3-D response surface using wireframe()

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