Just what is meant by dummy points as referred to by the help for the
deldir() function? I understood they indicated the boundary beyond
which triangulation would cease.
I thought I would need the x/y elements (as described in the help file
at the end of the description of the use of the dpl argument) to
describe ad hoc dummy points as way to define a polygon or two as a
boundary. However, it gives this error:
Error in xd[-drop] : only 0's may be mixed with negative subscripts
Something internal is doing the negative subscripting.
I tried ndx/ndy instead of x/y but it evidently refers only to a
rectangle so not what I need.
Am I barking up the wrong tree altogether? Is the boundary defined
somewhere else entirely? I need to get that clear before I am able to
provide
useful example code.
TIA
Patrick
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
