lawn (version 0.5.0)

lawn_variance: Variance of a field among points within polygons

Description

Calculates the variance value of a field for a set of data-Point's within a set of data-Polygon's.

Usage

lawn_variance(polygons, points, in_field, out_field = "variance",
  lint = FALSE)

Arguments

polygons

a data-FeatureCollection of data-Polygon features

points

a data-FeatureCollection of data-Point features

in_field

(character) the field in input data to analyze

out_field

(character) the field in which to store results

lint

(logical) Lint or not. Uses geojsonhint. Takes up increasing time as the object to get linted increases in size, so probably use by default for small objects, but not for large if you know they are good geojson objects. Default: FALSE

Value

A FeatureCollection of data-Polygon features with properties listed as out_field.

A FeatureCollection of data-Polygon features with properties listed as out_field.

See Also

Other aggregations: lawn_average, lawn_collect, lawn_count, lawn_deviation, lawn_max, lawn_median, lawn_min, lawn_sum

Examples

# NOT RUN {
poly <- lawn_data$polygons_average
pt <- lawn_data$points_average
lawn_variance(poly, pt, 'population')
# }