Identify Points On a Variogram Cloud Plot

DESCRIPTION:

Interactively identifies points on a variogram cloud plot if a suitable graphics device is being used.

USAGE:

identify.vgram.cloud(x, labels, plot=T, ...) 

REQUIRED ARGUMENTS:

x
a "vgram.cloud" object. This must have components distance, gamma, iindex and jindex.

OPTIONAL ARGUMENTS:

labels
vector giving labels for each of the points. If supplied, this must have the same length as x$distance. The default is the row indices for the two values making up the point separated by a comma.
plot
if TRUE, identify plots the labels of the points identified. In any case, the subscripts are returned.
...
optional arguments taken from the argument list for identify.default.

VALUE:

indices of the identified points.

SIDE EFFECTS:

labels are placed on the current plot if plot = TRUE, the default for identify.default .

DETAILS:

This function is a method for the generic function identify for class "vgram.cloud" . It can be invoked by calling identify for an object of the appropriate class, or directly by calling identify.vgram.cloud regardless of the class of the object.

SEE ALSO:

, , .

EXAMPLES:

vc.coal <- variogram.cloud(coal ~ loc(x,y), data=coal.ash) 
plot(vc.coal) 
identify(vc.coal)