Nothing
## ---- include = FALSE---------------------------------------------------------
knitr::opts_chunk$set(
collapse = TRUE,
comment = "#>"
)
if (rlang::is_installed("partykit") &&
rlang::is_installed("lightgbm") &&
rlang::is_installed("modeldata")) {
run <- TRUE
} else {
run <- FALSE
}
knitr::opts_chunk$set(
eval = run
)
## ----setup--------------------------------------------------------------------
library(bonsai)
## -----------------------------------------------------------------------------
library(modeldata)
data(penguins)
str(penguins)
## -----------------------------------------------------------------------------
# set seed for reproducibility
set.seed(1)
# specify and fit model
dt_mod <-
decision_tree() %>%
set_engine(engine = "rpart") %>%
set_mode(mode = "classification") %>%
fit(
formula = species ~ flipper_length_mm + island,
data = penguins
)
dt_mod
## -----------------------------------------------------------------------------
decision_tree() %>%
set_engine(engine = "partykit") %>%
set_mode(mode = "classification") %>%
fit(
formula = species ~ flipper_length_mm + island,
data = penguins
)
## -----------------------------------------------------------------------------
rf_mod <-
rand_forest() %>%
set_engine(engine = "partykit") %>%
set_mode(mode = "classification") %>%
fit(
formula = species ~ flipper_length_mm + island,
data = penguins
)
## -----------------------------------------------------------------------------
bt_mod <-
boost_tree() %>%
set_engine(engine = "lightgbm") %>%
set_mode(mode = "classification") %>%
fit(
formula = species ~ flipper_length_mm + island,
data = penguins
)
bt_mod
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