Dear all
I try to assign class attributes to strings. Depending on the approach I use,
it works (including method dispatch) or fails.
Let me clarify with an example.
Let:
AONtptmodelist - c(FOOT,BICY)
When I assign class attributes directly to these strings, it fails:
class(BICY) -
There are two separate issues that seem to be unclear.
Concerning the class assignment: You cannot assign a class to a
character string. You can assign a class to an object that contains a
character string:
a - b
# ok
class(a) - AONmode
# not ok
class(b) - AONmode
Error in class(b) - AONmode
a) You cannot assign attributes to literal values such as BICY. You must
assign them to variables, as in
x - BICY
class(x) - AONmode
b) You cannot give the separate elements of a vector their own separate
attributes unless the vector is of mode list. Ordinarily, attributes apply to
the whole
Dear Nello
Thanks for the clarification.
It was of course an elementary mistake to assume that the for loop would modify
the original AONtptmodelist.
I also understand now that the issues was that I cannot attribute a class to a
literal.
Your proposed alternative seems to work now, including the
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