On 01/02/2015 10:26 PM, p_connolly wrote: > 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.
You should say what package you're asking about. deldir() is not a base R function. Duncan Murdoch > > 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. > ______________________________________________ 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.