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.