`find_formula.Rd`

Returns the formula(s) for the different parts of a model (like fixed or random effects, zero-inflated component, ...).

find_formula(x, ...)

x | A fitted model. |
---|---|

... | Currently not used. |

A list of formulas that describe the model. For simple models,
only one list-element, `conditional`

, is returned. For more complex
models, the returned list may have following elements:

`conditional`

, the "fixed effects" part from the model. One exception are`DirichletRegModel`

models from DirichletReg, which has two or three components, depending on`model`

.`random`

, the "random effects" part from the model (or the`id`

for gee-models and similar)`zero_inflated`

, the "fixed effects" part from the zero-inflation component of the model`zero_inflated_random`

, the "random effects" part from the zero-inflation component of the model`dispersion`

, the dispersion formula`instruments`

, for fixed-effects regressions like`ivreg`

,`felm`

or`plm`

, the instrumental variables`cluster`

, for fixed-effects regressions like`felm`

, the cluster specification`correlation`

, for models with correlation-component like`gls`

, the formula that describes the correlation structure`slopes`

, for fixed-effects individual-slope models like`feis`

, the formula for the slope parameters`precision`

, for`DirichletRegModel`

models from DirichletReg, when parametrization (i.e.`model`

) is`"alternative"`

.

For models of class `lme`

or `gls`

the correlation-component
is only returned, when it is explicitly defined as named argument
(`form`

), e.g. `corAR1(form = ~1 | Mare)`

#> $conditional #> mpg ~ wt + cyl + vs #> <environment: 0x0000000029bf04d0> #>