position_symbol: Search For the Position of a Symbol

In mmrm: Mixed Models for Repeated Measures

Search For the Position of a Symbol

Description

A thin wrapper around base::Position() to search through a list of language objects, as produced by flatten_call() or flatten_expr(), for the presence of a specific symbol.

Usage

position_symbol(x, sym, ...)

Arguments

x	(list of language) a list of language objects in which to search for a specific symbol.
sym	(name or symbol or character) a symbol to search for in x.
...	Additional arguments passed to Position().

Value

The position of the symbol if found, or the nomatch value otherwise.

mmrm documentation built on Oct. 7, 2024, 1:14 a.m.