Found the following significant warnings:

  Warning: 'default.stringsAsFactors' is deprecated.
  Warning: 'default.stringsAsFactors' is deprecated.
Deprecated functions may be defunct as soon as of the next release of
R.
See ?Deprecated.
Examples with CPU (user + system) or elapsed time > 5s
          user system elapsed
aoristic 4.500  0.132   5.276
roc      3.871  0.020   5.015
Found the following significant warnings:

  Warning: 'default.stringsAsFactors' is deprecated.
  Warning: 'default.stringsAsFactors' is deprecated.
Deprecated functions may be defunct as soon as of the next release of
R.
See ?Deprecated.
Examples with CPU (user + system) or elapsed time > 5s
          user system elapsed
aoristic 3.116  0.103   6.189
Found the following significant warnings:

  Warning: 'default.stringsAsFactors' is deprecated.
  Warning: 'default.stringsAsFactors' is deprecated.
Deprecated functions may be defunct as soon as of the next release of
R.
See ?Deprecated.
Found the following significant warnings:

  Warning: 'default.stringsAsFactors' is deprecated.
  Warning: 'default.stringsAsFactors' is deprecated.
Deprecated functions may be defunct as soon as of the next release of
R.
See ?Deprecated.
Found the following significant warnings:

  Warning: 'default.stringsAsFactors' is deprecated.
  Warning: 'default.stringsAsFactors' is deprecated.
Deprecated functions may be defunct as soon as of the next release of
R.
See ?Deprecated.
Found the following significant warnings:

  Warning: 'default.stringsAsFactors' is deprecated.
  Warning: 'default.stringsAsFactors' is deprecated.
Deprecated functions may be defunct as soon as of the next release of
R.
See ?Deprecated.