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Extract formula parts
get_lhs(x)get_rhs(x)
get_rhs(x)
The requested part of the formula as a name or call or NULL if it does not exist.
NULL
A formula (or something that can be coerced to a formula) to extract a part from
get_lhs: Extract the left hand side (NULL for one-sided formula).
get_lhs
get_rhs: Extract the right hand side.
get_rhs