search for: _setis_

Hi, Please consider the following trivial example. In the sample code I first define a class MVCa using composition. This class contains a slot of type list. Next I define an inheritance relation using the function setIs -> MVCa "is a" list. Then I define a function printlength which prints the list-length which is defined for the type "list". If I call this function

By reading the documentation for _setIs_ I noted that for the same object three different names are used. 1) the name of the first argument in the functions coerce and replace in setIs must be _obj_ (see example section or) setIs("MVCa","list",coerce=function(obj){obj@list},replace=function(obj,value){obj@list<-v...

Hello, am I using 'setIs' in the correct way in the subsequent (artifical) example? Do I have to specify explicit 'setAs' for 'list' and 'vector' or should this work automatically, since "getClass("List1")" states an explicit coerce also for these classes. I'm working with R 2.0.0 Patched (2004-10-06) on windows 2000. Thanks for your