langOps: Tools for constructing formula terms

Description Usage Arguments Examples

Description

Tools for constructing formula terms

Usage

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binaryLangOp(arg1, arg2, Op)

unaryLangOp(arg, Op)

listLangOp(args, Op)

mkBinaryLangOp(Op)

Arguments

arg1,arg2,arg

a language object or length-one character vector

args

list of language objects and/or length-one character objects

Op

name of an operator (as language or character)

Examples

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(oneTerm <- binaryLangOp("a", "b", "|"))
(parenTerm <- unaryLangOp(oneTerm, "("))
(manyTerms <- mapply(binaryLangOp, "x", letters[1:5], "|", USE.NAMES = FALSE))
(manyParenTerms <- lapply(manyTerms, unaryLangOp, "("))
listLangOp(manyParenTerms, "+")

stevencarlislewalker/lme4ord documentation built on May 30, 2019, 4:43 p.m.