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Geocoding example - uses PDOK LocationServer
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library(httr) | |
library(dplyr) | |
library(readr) | |
library(purrr) | |
library(magrittr) | |
f <- "http://www.landelijkregisterkinderopvang.nl/opendata/export_opendata_lrk.csv" | |
input <- read_delim(f, delim = ";") %>% | |
mutate(adres = paste(opvanglocatie_adres, opvanglocatie_postcode, opvanglocatie_woonplaats)) %>% | |
select(lrk_id, adres, bag_id) %>% | |
head(100) # Ik pak alleen de eerste 100 rijen in de dataset, anders duurt het zo lang ;) | |
# Er zit een fout in het inputbestand: voor sommige rijen ontbreken de laatste 1-10 kolommen. | |
geocode <- function(adres){ | |
GET(url = "https://geodata.nationaalgeoregister.nl", | |
path = "locatieserver/v3/free", | |
query = list(qf = "exacte_match^1 suggest^0.5 huisnummer^0.5 huisletter^0.5 huisnummertoevoeging^0.5", | |
fq = "type:adres AND bron:BAG", | |
fl = "*", | |
q = adres, | |
rows = 1)) %>% | |
content() %>% | |
pluck('response', 'docs', 1) | |
} | |
output <- map_dfr(input$adres, function(x) { | |
attrs <- c("adresseerbaarobject_id", "weergavenaam", "centroide_ll") | |
geocode(x) %>% extract(attrs) | |
}) | |
matched <- bind_cols(input, output) | |
print(matched) |
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