r descr_models("poisson_reg", "glmnet")
defaults <- tibble::tibble(parsnip = c("penalty", "mixture"), default = c("see below", "1.0")) param <- poisson_reg() %>% set_engine("glmnet") %>% make_parameter_list(defaults)
This model has r nrow(param)
tuning parameters:
param$item
The penalty
parameter has no default and requires a single numeric value. For more details about this, and the glmnet
model in general, see [glmnet-details]. As for mixture
:
mixture = 1
specifies a pure lasso model,mixture = 0
specifies a ridge regression model, and0 < mixture < 1
specifies an elastic net model, interpolating lasso and ridge.r uses_extension("poisson_reg", "glmnet", "regression")
library(poissonreg) poisson_reg(penalty = double(1), mixture = double(1)) %>% set_engine("glmnet") %>% translate()
By default, glmnet::glmnet()
uses the argument standardize = TRUE
to center and scale the data.
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