Performance improvement of countrycode

exploratory-io / exploratory_func

R functions for Exploratory

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Performance improvement of countrycode #27

Open yosuke-yasuda opened 8 years ago

yosuke-yasuda commented 8 years ago

countrycode function should be faster to use it in colopreth map of Exploratory desktop

Now, we use https://github.com/vincentarelbundock/countrycode directly.

You can try

stringr functions instead of default functions like gsub
Rcpp or RcppParallel
- http://adv-r.had.co.nz/Rcpp.html
- https://rcppcore.github.io/RcppParallel/

Todo:

[ ] Create examples for benchmark
[ ] Check benchmark of current countrycode function
[ ] Implement faster function
[ ] Compare the benchmark

cjyetman commented 7 years ago

FYI... countrycode was recently updated and one of the improvements was a significant performance boost by factoring the incoming vector and only matching on the levels/unique values.