Find name of the response variable — find

Returns the name(s) of the response variable(s) from a model object.

Usage

find_response(x, combine = TRUE, ...)

# S3 method for class 'mjoint'
find_response(
  x,
  combine = TRUE,
  component = c("conditional", "survival", "all"),
  ...
)

# S3 method for class 'joint'
find_response(
  x,
  combine = TRUE,
  component = c("conditional", "survival", "all"),
  ...
)

Arguments

x: A fitted model.
combine: Logical, if TRUE and the response is a matrix-column, the name of the response matches the notation in formula, and would for instance also contain patterns like "cbind(...)". Else, the original variable names from the matrix-column are returned. See 'Examples'.
...: Currently not used.
component: Character, if x is a joint model, this argument can be used to specify which component to return. Possible values are "conditional", "survival" or "all".

Value

The name(s) of the response variable(s) from x as character vector, or NULL if response variable could not be found.

Examples

data(cbpp, package = "lme4")
cbpp$trials <- cbpp$size - cbpp$incidence
m <- glm(cbind(incidence, trials) ~ period, data = cbpp, family = binomial)

find_response(m, combine = TRUE)
#> [1] "cbind(incidence, trials)"
find_response(m, combine = FALSE)
#> [1] "incidence" "trials"