Hi all, I recently picked up Tidymodels after having used R for a few months in my school.
I was trying to make my first model using the Titanic Dataset on Kaggle, but ran into some issues when fitting the model. Could someone help me?
titanic_rec <- recipe(Survived ~ Sex + Age + Pclass + Embarked + Family_Size + Name, data = titanic_train) %>%
step_impute_knn(all_predictors(), k = 3) %>%
step_dummy(Sex, Pclass, Embarked, Family_Size, Name) %>%
step_interact(~ Sex:Age + Sex:Pclass + Pclass:Age)
log_model <- logistic_reg() %>%
set_engine("glm") %>%
set_mode("classification")
fitted_log_model <- workflow() %>%
add_model(log_model) %>%
add_recipe(titanic_rec) %>%
fit(data = titanic_train) %>%
pull_workflow_fit() %>%
tidy()
Every feature has a factor data type except Age and Survived which are doubles. The error seems to come about when I include the fit(data = ...) onwards.
The error traceback is:
Error: Can't rename variables in this context. Run `rlang::last_error()` to see where the error occurred.
24.
stop(fallback)
23.
signal_abort(cnd)
22.
abort("Can't rename variables in this context.")
21.
eval_select_recipes(to_impute, training, info)
20.
impute_var_lists(to_impute = x$terms, impute_using = x$impute_with, training = training, info = info)
19.
prep.step_impute_knn(x$steps[[i]], training = training, info = x$term_info)
18.
prep(x$steps[[i]], training = training, info = x$term_info)
17.
prep.recipe(blueprint$recipe, training = data, fresh = blueprint$fresh)
16.
recipes::prep(blueprint$recipe, training = data, fresh = blueprint$fresh)
15.
blueprint$mold$process(blueprint = blueprint, data = data)
14.
run_mold.recipe_blueprint(blueprint, data)
13.
run_mold(blueprint, data)
12.
mold.recipe(recipe, data, blueprint = blueprint)
11.
hardhat::mold(recipe, data, blueprint = blueprint)
10.
fit.action_recipe(action, workflow = workflow, data = data)
9.
fit(action, workflow = workflow, data = data)
8.
.fit_pre(workflow, data)
7.
fit.workflow(., data = titanic_train)
6.
fit(., data = titanic_train)
5.
is_workflow(x)
4.
validate_is_workflow(x)
3.
pull_workflow_fit(.)
2.
tidy(.)
1.
workflow() %>% add_model(log_model) %>% add_recipe(titanic_rec) %>% fit(data = titanic_train) %>% pull_workflow_fit() %>% tidy()