Description Usage Arguments Value
Applies a recursive descent parser to transform '*', grouping using parentheses, and lme4-style random effects. '1' is for an intercept, '0' is for an explicit no-intercept. Processing of contrasts is left for later.
1 | simplify(node)
|
node |
an R formula object. |
side |
which side of the formula to parse, either the 'rhs' (default) or the 'lhs' functions. |
a simplified formula involving _only_ undefined functions, intercept-related calls, parens, '+', and ':'
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