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formulas() creates a list of two-sided formulas by merging a unique left-hand side to a list of right-hand sides.

Usage

formulas(.response, ...)

formulae(.response, ...)

Arguments

.response

A one-sided formula used as the left-hand side of all resulting formulas.

...

List of formulas whose right-hand sides will be merged to .response.

Examples

# Provide named arguments to create a named list of formulas:
models <- formulas(~lhs,
  additive = ~var1 + var2,
  interaction = ~var1 * var2
)
models$additive
#> lhs ~ var1 + var2
#> <environment: 0x55d02120ad88>

# The formulas are created sequentially, so that you can refer to
# previously created formulas:
formulas(~lhs,
  linear = ~var1 + var2,
  hierarchical = add_predictors(linear, ~(1 | group))
)
#> $linear
#> lhs ~ var1 + var2
#> <environment: 0x55d02120ad88>
#> 
#> $hierarchical
#> lhs ~ var1 + var2 + (1 | group)
#> <environment: 0x55d02120ad88>
#>