## sla: Two-Group Straight Line ANCOVA

Provides directly interpretable estimated coefficients
for four models in connection with the two-group straight line
ANCOVA problem: (A) the full model, which requires the fitting of
two intercepts and two slopes; (B) a reduced model, which requires
the fitting of a single intercept and single slope; (C) a reduced
model, which requires the fitting of two separate intercepts and a
single, common slope; and (D) a reduced model, which requires the
fitting of a single, common intercept and two separate slopes. The
summary function provides tests of fit for the (null) hypotheses of:
(1) equivalent data sets, (2) equivalent slopes, and
(3) equivalent intercepts.

Version: |
0.1 |

Depends: |
R (≥ 3.0.2) |

Suggests: |
MASS, car, ISwR, knitr |

Published: |
2014-11-17 |

Author: |
W. Gregory Alvord [aut, cre],
Nick Carchedi [aut] |

Maintainer: |
W. Gregory Alvord <greg.alvord at nih.gov> |

License: |
GPL-2 |

NeedsCompilation: |
no |

Materials: |
README |

CRAN checks: |
sla results |

#### Downloads: