Cut out the column containing the non-default pattern.
Applying the rule will result in one of:
Applying the rule will result in one of:
VariableRule - if all patterns are default patterns MixtureRule - if one or more patterns are not default patterns Error - no rows remaining
Converts this to a tree - recursively acquires subreps.
(rep: StringAdd).self
(rep: StringFormat).self
(rep: ArrowAssoc[Rep]).x
(Since version 2.10.0) Use leftOfArrow
instead
(rep: Ensuring[Rep]).x
(Since version 2.10.0) Use resultOfEnsuring
instead