symbols: Some symbols that might be used in formulas
In varComp: Variance Component Models

Some symbols that might be used in formulas: "+", ":", "*", "~".

plus
colon
star
tilde

identical(plus, as.symbol("+"))
identical(colon, as.symbol(":"))
identical(star, as.symbol("*"))
identical(tilde, as.symbol("~"))

varComp documentation built on July 9, 2017, 9:02 a.m.

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