我试图将套索模型应用于我创建的食谱(使用recipes
包),但出现错误:
NAs由
lognet(xd, is.sparse, ix, jx, y, weights, offset, alpha, nobs, : NA/NaN/Inf in foreign function call (arg 5) 中的强制错误引入
这是我创建的食谱:
c_recipe <- recipe(c ~ .,
data = train) %>%
step_rm(customer_id, billing_postal, billing_address,billing_city) %>%
step_novel(all_nominal_predictors()) %>%
step_impute_mean(all_numeric_predictors()) %>%
step_impute_mode(all_nominal_predictors()) %>%
step_normalize(all_numeric_predictors()) %>%
step_dummy(all_nominal_predictors()) %>%
step_zv(all_predictors())
c_recipe
这是我应用模型的方式:
lasso_spec <- logistic_reg(penalty = 0.1, mixture = 1) %>%
set_mode("classification") %>%
set_engine("glmnet")
logistic_wf <- workflow() %>%
add_recipe(churn_recipe) %>%
add_model(lasso_spec) %>%
fit(train)