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Retrieve Finnish Administrative Area Polygons with Population Data

Source: R/ogc_api_statfi.R
ogc_get_statfi_area_pop.Rd

Retrieves municipality or other administrative (multi)polygons with population data from Statistics Finland's OGC API. Supports different years and coordinate reference systems for Finnish administrative boundaries at a fixed scale of 1:4,500,000.

Usage

ogc_get_statfi_area_pop(year = 2023, crs = 3067, limit = NULL, bbox = NULL)

Arguments

year

Integer. Year of the administrative borders and population data. Options: 2019, 2020, 2021. Default: 2021.

crs

Integer. Coordinate Reference System (EPSG code). Options: 3067 (ETRS89 / TM35FIN), 4326 (WGS84). Default: 3067.

limit

Integer or NULL. Maximum number of features to retrieve. If NULL, retrieves all available features. Default: NULL.

bbox

Character or NULL. Bounding box for spatial filtering in format "xmin,ymin,xmax,ymax" (in the specified CRS). Default: NULL.

Value

An sf object containing spatial data and population statistics, pivoted to wide format with variables as columns, or NULL if no data is retrieved.

Author

Markus Kainu markus.kainu@kapsi.fi

Examples

if (FALSE) { # \dontrun{
# Get population data for 2020
pop_data <- ogc_get_statfi_area_pop(year = 2020, crs = 3067)

# Get population data within a bounding box
bbox <- "200000,6600000,500000,6900000"
pop_data <- ogc_get_statfi_area_pop(year = 2021, bbox = bbox, crs = 3067)

# Limit to 10 features
pop_data <- ogc_get_statfi_area_pop(year = 2019, limit = 10, crs = 4326)
} # }