View source: R/model_list_contrasts.R
model_list_contrasts | R Documentation |
List contrasts used by a model
model_list_contrasts(model)
## Default S3 method:
model_list_contrasts(model)
model |
(a model object, e.g. |
For models with no intercept, no contrasts will be applied to one of the categorical variable. In such case, one dummy term will be returned for each level of the categorical variable.
A tibble with three columns:
variable
: variable name
contrasts
: contrasts used
contrasts_type
: type of contrasts
("treatment", "sum", "poly", "helmert", "sdiff, "other" or "no.contrast")
reference
: for variables with treatment, SAS
or sum contrasts, position of the reference level
Other model_helpers:
model_compute_terms_contributions()
,
model_get_assign()
,
model_get_coefficients_type()
,
model_get_contrasts()
,
model_get_model()
,
model_get_model_frame()
,
model_get_model_matrix()
,
model_get_n()
,
model_get_nlevels()
,
model_get_offset()
,
model_get_pairwise_contrasts()
,
model_get_response()
,
model_get_response_variable()
,
model_get_terms()
,
model_get_weights()
,
model_get_xlevels()
,
model_identify_variables()
,
model_list_higher_order_variables()
,
model_list_terms_levels()
,
model_list_variables()
glm(
am ~ mpg + factor(cyl),
data = mtcars,
family = binomial,
contrasts = list(`factor(cyl)` = contr.sum)
) |>
model_list_contrasts()
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