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Expand terms with '||' notation into separate '|' terms

Source: R/utils.R
expandDoubleVerts.Rd

From the right hand side of a formula for a mixed-effects model, expand terms with the double vertical bar operator into separate, independent random effect terms.

Usage

expandDoubleVerts(term)

Arguments

term

a mixed-model formula

Value

the modified term

See also

formula, model.frame, model.matrix.

Other utilities: mkReTrms(), nobars(), subbars()