November 2017
Beginner to intermediate
366 pages
7h 59m
English
Content preview from R Data Analysis Projects
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Phonetic features
The RecordLinkage package includes Soundex and Pho_h algorithms to compare string columns. In our example, we want to use columns 2, 3, and 4 for string comparison, specified by the list we pass to the phonetic parameter, and use the Pho_h function by passing it to the phonfun parameter:
Soundex is a phonetic algorithm for indexing names by sound, as pronounced in English. The goal is for homophones to be encoded to the same representation so that they can be matched despite minor differences in spelling. https://en.wikipedia.org/wiki/Soundex
Let us generate some phoenetic-based features:
> rec.pairs.matches <- compare.dedup(RLdata500+ ,blockfld = list(1, 5:7)+ ,phonetic = c(2,3,4)+ ,phonfun = pho_h)> head(rec.pairs.matches$pairs) ...
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