ropensci/visdat

make `vis_guess` fast

Aperta

#14 aperta il 6 mar 2016

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Descrizione

Currently vis_guess is a bit slow and it'd be nice to make it faster.

We found that using vapply was much faster than using purrr, which is a bit of a shame as I think that the current code doesn't read as nice as purrr code (dare I say it, it doesn't purrr).

The way I see it we have two options to really speed things up.

  1. Write some C++ code based on the readr::::CollectorGuess code, so that it deals with a vector, rather than a single element.
  2. Use one of the functions from the parallel library, like mcapply.

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