get_poly_attribute

<a href="https://lifecycle.r-lib.org/articles/stages.html#deprecated"><img src="figures/lifecycle-deprecated.svg?package=bcmaps&version=1.2.0" alt="[Deprecated]"></a>
This function is deprecated as of bcmaps 1.2.0 because it had a very niche application for
calculating attributes on a <code>SpatialPolygonsDataFrame</code>, which we are removing
support for. It will be removed completely in Summer 2023.
For example, <code>self_union</code> produces a <code>SpatialPolygonsDataFrame</code>
that has a column called <code>union_df</code>, which contains a <code>data.frame</code>
for each polygon with the attributes from the constituent polygons.

internal

Various layers of B.C., including administrative boundaries, natural resource management boundaries, census boundaries etc. All layers are available in BC Albers (<https://spatialreference.org/ref/epsg/nad83-bc-albers/>) equal-area projection, which is the B.C. government standard. The layers are sourced from the British Columbia and Canadian government under open licenses, including B.C. Data Catalogue (<https://data.gov.bc.ca>), the Government of Canada Open Data Portal (<https://open.canada.ca/en/open-data>), and Statistics Canada (<https://www.statcan.gc.ca/en/reference/licence>).

Andy Teucher

bcmaps

Map Layers and Spatial Utilities for British Columbia

Sam Albers

Stephanie Hazlitt

Province of British Columbia 

get_poly_attribute function

<dl><dt>x</dt>
<dd>the list-column in the (SpatialPolygons)DataFrame that contains nested data.frames</dd>
<dt>col</dt>
<dd>the column in the nested data frames from which to retrieve/calculate attributes</dd>
<dt>fun</dt>
<dd>function to determine the resulting single attribute from overlapping polygons</dd>
<dt>...</dt>
<dd>other parameters passed on to <code>fun</code></dd></dl>

Arguments

<a href='https://lifecycle.r-lib.org/articles/stages.html#deprecated'><img src='figures/lifecycle-deprecated.svg' alt='[Deprecated]' /></a>
This function is deprecated as of bcmaps 1.2.0 because it had a very niche application for
calculating attributes on a <code>SpatialPolygonsDataFrame</code>, which we are removing
support for. It will be removed completely in Summer 2023.
For example, <code>self_union</code> produces a <code>SpatialPolygonsDataFrame</code>
that has a column called <code>union_df</code>, which contains a <code>data.frame</code>
for each polygon with the attributes from the constituent polygons.

Get or calculate the attribute of a list-column containing nested dataframes. — get_poly_attribute

<dl>

<dt>x</dt>
<dd>the list-column in the (SpatialPolygons)DataFrame that contains nested data.frames</dd>


<dt>col</dt>
<dd>the column in the nested data frames from which to retrieve/calculate attributes</dd>


<dt>fun</dt>
<dd>function to determine the resulting single attribute from overlapping polygons</dd>


<dt>...</dt>
<dd>other parameters passed on to <code>fun</code></dd>

</dl>

get_poly_attribute: Get or calculate the attribute of a list-column containing nested dataframes.

Description

Usage

Value

Arguments