Reimplementations of Functions Introduced Since R-3.0.0

anyNA | Backport of anyNA for R versions < 3.2.0. |

dir.exists | Backport of dir.exists for R < 3.2.0 |

dotsElt | Backport of ...elt for R < 3.4.2 |

dotsLength | Backport of ...length for R < 3.4.2 |

endsWith | Backport of endsWith for R < 3.3.0 |

file.info | Backport of 'file.info' for R < 3.2.0 |

file.size | Backports of wrappers around 'file.info' for R < 3.2.0 |

get0 | Backport of get0 for R < 3.2.0 |

hasName | Backport of hasName for R < 3.4.0 |

import | Import backported functions into your package |

isFALSE | Backport of isFALSE for R < 3.4.2 |

lengths | Backport of lengths for R < 3.2.0 |

startsWith | Backport of startsWith for R < 3.3.0 |

strrep | Backport of strrep for R < 3.3.0 |

trimws | Backport of trimws for R < 3.3.0 |

valid.factor | Backport of .valid.factor for R < 3.4.0 |

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