Imperfect string match using data.table

Question

Ok, so I posted a question a while back concerning writing an R function to accelerate string matching of large text files. I had my eyes opened to \'data.table\' and my que

Answer 1

I finally got it.

The agrep-function has a value-option that needs to be altered from FALSE (default) to TRUE:

dt <- dt[lapply(car.vins, agrep, x = vin.vins, max.distance = c(cost=2, all=2), value = TRUE)
         , .(NumTimesFound = .N)
         , by = vin.names]

Note: the max.distance parameters can be altered based on Levenshtein distance, substitutions, deletions, etc. 'agrep' is a fascinating function!

Thanks again for all the help!