Code
parameters_constr(2)
Condition
Error:
! `name` must be a character vector, not the number 2.
Code
ab <- c("a", "b")
parameters_constr(ab, c("a", "a"), ab, ab, ab)
Condition
Error:
! Element `id` should have unique values. Duplicates exist for item(s): 'a'
Code
ab <- c("a", "b")
parameters_constr(ab, ab, ab, ab, ab, "not a params list")
Condition
Error:
! `object` must be a list of `param` objects.
Code
ab <- c("a", "b")
parameters_constr("a", ab, ab, ab, ab, list(penalty(), mtry()))
Condition
Error:
! All inputs must contain contain the same number of elements.
Code
ab <- c("a", "b")
parameters_constr(ab, ab, ab, ab, ab, list(penalty()))
Condition
Error:
! All inputs must contain contain the same number of elements.
Code
parameters(list(a = mtry(), a = penalty()))
Condition
Error in `parameters()`:
! Element `id` should have unique values. Duplicates exist for item(s): 'a'
Code
update(p_1, new_pen)
Condition
Error in `update()`:
! All arguments should be named.
Code
update(p_1, penalty = 1:2)
Condition
Error in `update()`:
! At least one parameter is not a dials parameter object or NA: penalty.
Code
update(p_1, penalty(), mtry = mtry(3:4))
Condition
Error in `update()`:
! All arguments should be named.
Code
parameters(list(mtry(), penalty()))
Output
Collection of 2 parameters for tuning
identifier type object
mtry mtry nparam[?]
penalty penalty nparam[+]
Parameters needing finalization:
# Randomly Selected Predictors ('mtry')
See `?dials::finalize` or `?dials::update.parameters` for more information.
Code
ex_params[1, ] %>% structure(class = c("parameters", class(.)))
Output
Collection of 1 parameters for tuning
identifier type object
trials trials missing
Message
The parameter `trials` needs a `param` object.
See `vignette('dials')` to learn more.
Code
ex_params[1:2, ] %>% structure(class = c("parameters", class(.)))
Output
Collection of 2 parameters for tuning
identifier type object
trials trials missing
rules rules missing
Message
The parameters `trials` and `rules` need `param` objects.
See `vignette('dials')` to learn more.
Code
ex_params[1:3, ] %>% structure(class = c("parameters", class(.)))
Output
Collection of 3 parameters for tuning
identifier type object
trials trials missing
rules rules missing
costs costs missing
Message
The parameters `trials`, `rules`, and `costs` need `param` objects.
See `vignette('dials')` to learn more.
Code
parameters(tibble::as_tibble(mtcars))
Condition
Error in `parameters()`:
! `parameters` objects cannot be created from objects of class `tbl_df`.
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