filter_by_area.RdFilters a census table by another area e.g. meshblocks by territorial area or region. It can only work if the geographic level is at a greater scale than the input data e.g. meshblocks < area_units < wards < local boards < territoral authorities < regions
filter_by_area(.data, geographic_level, geographic_filter, pattern)
| .data | The data set to be filtered. Must contain a column with census spatial names in it e.g. (Area_Code_and_Description). |
|---|---|
| geographic_level | The geographic level of the input spatial data e.g. area_units. |
| geographic_filter | The geographic level of the spatial filter e.g. region. |
| pattern | The pattern to match the area to filter by e.g. 'Wellington Region'. |
A sf dataframe.