Dear R-Users and R-Devels,
I have large project based on S4 classes. While writing my unit tests I found
out, that 'is' cannot test for a specific class, as also inherited classes can
be treated as their super classes. I need to do checks for specific classes.
What I do right now is sth. like
if (class(myClass) == "firstClass") {
} else if (class(myClass) == "secondClass") {
}
Is this the usual way how classes are checked in R? I was expecting some
specific method (and 'inherits' or 'extends' is not what I look for)...
Best
Simon
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