Re: [Rd] Constructor/extractor.

2014-03-05 Thread Hervé Pagès
Hi Rolf, Barry, On 03/04/2014 08:08 AM, Barry Rowlingson wrote: On Tue, Mar 4, 2014 at 1:47 AM, Rolf Turner wrote: Questions: == (2) Even if there are no such functions, is there anything intrinsically *wrong* with having a function possessing this somewhat schizophrenic nature?

Re: [Rd] Constructor/extractor.

2014-03-04 Thread Barry Rowlingson
On Tue, Mar 4, 2014 at 1:47 AM, Rolf Turner wrote: > > > Questions: > == > > > (2) Even if there are no such functions, is there anything intrinsically > *wrong* with having a function possessing this somewhat schizophrenic > nature? Is it likely to cause confusion, induce syntactical mi

[Rd] Constructor/extractor.

2014-03-03 Thread Rolf Turner
Preamble: = In spatial point pattern analysis an important component of a point pattern object is the *observation window*. In the spatstat package we have the function owin() to *construct* such a window. It creates an object of class "owin" which can happily exist separately from