transform_to_measure: Transform to measure

In rolap: Obtaining Star Databases from Flat Tables

Transform to measure

Description

Transform attributes into measures.

Usage

transform_to_measure(ft, attributes, k_sep, decimal_sep)

## S3 method for class 'flat_table'
transform_to_measure(ft, attributes, k_sep = NULL, decimal_sep = NULL)

Arguments

ft	A flat_table object.
attributes	A vector of strings, attribute names.
k_sep	A character, thousands separator to remove.
decimal_sep	A character, new decimal separator to use, if necessary.

Details

We can indicate a thousands indicator to remove and a decimal separator to use. The only decimal separators considered are "." and ",".

Value

ft A flat_table object.

See Also

flat_table

Other flat table transformation functions: add_custom_column(), remove_instances_without_measures(), replace_empty_values(), 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_values()

Examples

ft <- flat_table('iris', iris) |>
  transform_to_attribute(measures = "Sepal.Length", decimal_places = 2) |>
  transform_to_measure(attributes = "Sepal.Length", decimal_sep = ".")

rolap documentation built on June 8, 2025, 10:23 a.m.