check_mrca_prior_name: Check if mrca_prior_name
is a valid MRCA prior name.
Description
A valid MRCA prior name is either NA or one character string.
Will stop if not.
Usage
check_mrca_prior_name(mrca_prior_name)
Value
No return value, called for side effects
Arguments
- mrca_prior_name
the unique name of the MRCA prior,
for example a genus, family,
order or even class name.
Leave at NA to have it named automatically.