[R] plot3d, wireframe, persp help

dxc13 dxc13 at health.state.ny.us
Thu Dec 20 15:17:19 CET 2007


When using the wireframe function you need to create a 2D grid for your two X
variables.  Try the "expand.grid" function on your data, then run the
wireframe on that result




Brad B-2 wrote:
> 
> Hello,
>   I am trying to get a surface plot of a data set that looks like the
> following,
>   1  2  5.6
>   5  9  2.4
>   9  8  9.8
>   ... to (60,000 rows down)
>    
>   From my homework, the persp function only works with evenly spaced data
> points with the z data beeing in a matrix.  my data is not in that format.
>   the wireframe fxn gives me an error,
>   no applicable method for "wireframe"
> the plot3d fxn I got working thanks to Scionforbai's help.  However it
> does not represent the data like wireframe or persp would.
>   Any help would be appreciated.
>   thanks
>    
> 
>        
> ---------------------------------
> 
> 	[[alternative HTML version deleted]]
> 
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