3-D Point Cloud

USAGE:

cloud(formula, ...) 

The following arguments have special meaning within this function. The common meanings for these and all other arguments are listed separately under trellis.args. This function also takes 3D arguments listed under trellis.3d.args.

ARGUMENTS:

formula
formula defining the 3-D surface and the grid over which the surface is defined. This is a formula of the form: z ~ x * y | g1 * g2 * ... x, y , and z are numeric vectors determine the 3-D space position of the points in the point-cloud display. Any 3-D points containing NAs will be removed. The given variables g1, g2 , ... may be omitted.

VALUE:

an object of class trellis, which is automatically plotted by print.trellis.

SEE ALSO:

, , .

EXAMPLES:

cloud(velocity ~ east.west * north.south, data = galaxy, 
      screen = list(z = 120, x = -60, y = 0),  
      xlab = "East-West", ylab = "South-North",  
      zlab = "Velocity", main = "NGC 7531 Galaxy")