R 2.6.0 S4 data breakage, R _data_class(), class<-, etc.

bhs2 at mevik.net (Bj?rn-Helge Mevik) writes:
Martin Morgan wrote:

But both 'new' and 'as' appear to produce invalid (in a different
sense, I guess) objects:

setClass("snp", contains="raw",
+          validity=function(object) {
+              if (length(object) < 1) "too short"
+              else TRUE
+          })
Well, you _have_ designed a class with an invalid prototype (as
determined by your own validity function). :-)
Yeah, its true I did, but the software let me get away with it. Even
with a valid protoytpe I can as(raw(), "snp").

Martin
-- 
Bj?rn-Helge Mevik

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R 2.6.0 S4 data breakage, R _data_class(), class<-, etc.

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