filter_dimension: Filter dimension

In rolap: Obtaining Star Databases from Flat Tables

Filter dimension

Description

Allows you to define selection conditions for dimension rows.

Usage

filter_dimension(sq, name, ...)

## S3 method for class 'star_query'
filter_dimension(sq, name = NULL, ...)

Arguments

sq	A star_query object.
name	A string, name of the dimension.
...	Conditions, defined in exactly the same way as in dplyr::filter.

Details

Conditions can be defined on any attribute of the dimension (not only on attributes selected in the query for the dimension). The selection is made based on the function dplyr::filter. Conditions are defined in exactly the same way as in that function.

Value

A star_query object.

See Also

Other query functions: as_GeoPackage(), as_geolayer(), get_layer(), get_variable_description(), get_variables(), run_query(), select_dimension(), select_fact(), set_layer(), set_variables(), star_query()

Examples

sq <- mrs_db |>
  star_query() |>
  filter_dimension(name = "when", week <= " 3") |>
  filter_dimension(name = "where", city == "Cambridge")

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