match_number {KOR.addrlink}

Find Best House Number Match Within Given Street

Description

This is an internal function. Please use addrlink

Usage

match_number(record, Adressen, weights = c(0.9, 0.1))

Arguments

record

data.frame with one row and three columns (Strasse, Hausnummer, Hausnummernzusatz)

Adressen

data.frame of all valid addresses (same columns as record data.frame)

weights

The weighing factors between house number and additional letter

Details

If no house number and no additional letter is provided, a random address in the given street is selected (qscore = 0).

If only an additional letter but no house number is given and the letter is unique, returns the corresponding record (qscore = 0.05). Otherwise returns a random one as mentioned above (qscore = 0).

If no additional letter, but house number is provided and the maximum distance to a valid house number is 4, return the closest match as calculated by l1score (qscore is the result of l1score). Otherwise a random record is returned (qscore = 0).

If additional letter and house number are available and the house number distance is smaller then 4, calculates the l1scores of the house number distance and addional letters distance and selects the best match (qscore is the sum of both weighted l1scores). Otherwise a random record is selected (qscore = 0).

Value

A data.frame

qscore

The quality score of the match

Strasse

matched street

Hausnummer

matched house number

Hausnummernzusatz

matched additional letter

Author(s)

Daniel Schürmann

See Also

addrlink