(ba) This function checks /alk/ more deeply than
which is also called.
The alk object to be validated.
After numerous attempts all the checks made in that function where
removed from valid8alk because it seemed difficult to comply the
requirements of a standard package by R checking. As far as possible,
only complementary tests to
valid8alk are performed.
The main idea is that non completed /alk/ must avoid the redundancy while completed /alk/ must have all slot filled in the standard way.
TRUE when the object seems acceptable else a character describing the error(s) but when something badly strong is discovered a fatal error is issued.