Changes in version 0.0.3 (2020-03-18)                  

  - set stringsAsFactors = FALSE in the data frame returned by the
    function GKtau to be compatible with upcoming change in data frame
    default for this argument
  - applied as.character() to GKtau arguments x and y so that missing
    levels of a factor no longer cause GKtau to return NaN
  - applied as.data.frame() to GKtauDataframe so that it works correctly
    with data tables