# NOT RUN {
library("mlr3")
task = tsk("boston_housing")
pos = po("select")
pos$param_set$values$selector = selector_all()
pos$train(list(task))[[1]]$feature_names
pos$param_set$values$selector = selector_type("factor")
pos$train(list(task))[[1]]$feature_names
pos$param_set$values$selector = selector_invert(selector_type("factor"))
pos$train(list(task))[[1]]$feature_names
pos$param_set$values$selector = selector_grep("^r")
pos$train(list(task))[[1]]$feature_names
# }
Run the code above in your browser using DataCamp Workspace