Replace empty values with the unknown value — replace_empty_values • rolap

Transforms the given attributes by replacing the empty values with the unknown value.

Usage

replace_empty_values(ft, attributes, empty_values)

# S3 method for class 'flat_table'
replace_empty_values(ft, attributes = NULL, empty_values = NULL)

Arguments

ft: A flat_table object.
attributes: A vector of names.
empty_values: A vector of values that correspond to empty values.

Value

A flat_table object.

Details

In addition to the NA or empty values, those indicated (e.g., "-") can be considered as empty values.

See also

Other flat table transformation functions: add_custom_column(), remove_instances_without_measures(), replace_string(), replace_unknown_values(), select_attributes(), select_instances(), select_instances_by_comparison(), select_measures(), separate_measures(), transform_attribute_format(), transform_from_values(), transform_to_attribute(), transform_to_measure(), transform_to_values()

Examples


iris2 <- iris
iris2[10, 'Species'] <- NA
ft <- flat_table('iris', iris2) |>
  replace_empty_values()