extract.postal.codes | R Documentation |
Extract Danish postal codes from an adress string
## S3 method for class 'postal.codes'
extract(x, check.valid = FALSE)
x |
a character vector with addresses |
check.valid |
if TRUE all invalid postal codes are set as NA. This affects postal codes for Greenland (3900:3992) |
a numeric vector
data(corp13)
address <- corp13$Adress
plot(table(extract.postal.codes(address)))
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