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

[David Winsemius]

On Apr 8, 2010, at 3:13 PM, array chip wrote:

> David,
>
> That does the job! Thanks a lot.
>
> Now I am very very close to what I want. Still have a couple of  
> small adjustments to make.
>
> 1. I use drape=TRUE to draw grid and color on the surface, is there  
> a parameter to adjust the density of the grid?

If you mean the spacing between points, then isn't that determined by  
the density of the gridded data arguments before they get to the  
wireframe function?

>
> 2. Is there a way that I can add grid to the axis surface? I mean  
> the sides of the box, between x & y, between x & z, and between y &  
> z? And I need to choose which 3 side of the box that I want to add  
> grid?

See Figure 13.7 of Sarkar's Lattice text for an example of a panel  
function that collapses the contourLines of the volcano dataset at the  
top bounding surface by using ltransform3dto3d with a z argument of  
zlim.scaled[2]. I would think that a grid could be 3dto3d transformed  
similarly.

-- 
David.

>
> Thank you all for the help. It's fun to play with wireframe
>
> John
>
> --- On Wed, 4/7/10, David Winsemius <dwinsemius at comcast.net> wrote:
>
>> From: David Winsemius <dwinsemius at comcast.net>
>> Subject: Re: [R] 3-D response surface using wireframe()
>> To: "array chip" <arrayprofile at yahoo.com>
>> Cc: r-help at r-project.org
>> Date: Wednesday, April 7, 2010, 9:22 PM
>>
>> 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 of
>>> the 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 on
>>> the bottom of the plot?
>>
>> Look at the scpos argument to specify the scales location.
>> (Still
>> lacking an example and therrefore doing this from memory.)
>>
>> -- 
>> David
>>>
>>> Thanks
>>>
>>> John
>>>
>>> --- On Wed, 4/7/10, David Winsemius <dwinsemius at comcast.net>
>> wrote:
>>>
>>>> From: David Winsemius <dwinsemius at comcast.net>
>>>> Subject: Re: [R] 3-D response surface using
>> wireframe()
>>>> To: "array chip" <arrayprofile at yahoo.com>
>>>> Cc: r-help at 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:
>>>>>
>>>>>
>>>>    z
>>>>>
>>>>    |
>>>>>
>>>>    |
>>>>>
>>>>    |
>>>>>
>>>>    |
>>>>>
>>>>    |
>>>>>
>>>>     /0\
>>>>>
>>>> /   \
>>>>>
>>>>     /     \
>>>>>
>>>> /       \
>>>>>
>>>>     /
>>    \
>>>>>
>>    /
>>>>           \
>>>>>             y
>>>>             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
>>>>>
>>>>>
>> ______________________________________________
>>>>> R-help at 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.
>>>>
>>>> David Winsemius, MD
>>>> West Hartford, CT
>>>>
>>>>
>>>
>>>
>>>
>>>
>>
>> David Winsemius, MD
>> West Hartford, CT
>>
>>
>
>
>

David Winsemius, MD
West Hartford, CT