Description Usage Arguments Details Value Author(s) References See Also

Functions used in quantile regression transformation models

1 2 3 4 5 6 7 8 | ```
ao(theta, lambda, symm = TRUE, omega = 0.001)
invao(x, lambda, symm = TRUE, replace = TRUE)
bc(x, lambda)
invbc(x, lambda, replace = TRUE)
mcjI(x, lambda, symm = TRUE, dbounded = FALSE, omega = 0.001)
invmcjI(x, lambda, symm = TRUE, dbounded = FALSE)
mcjII(x, lambda, delta, dbounded = FALSE, omega = 0.001)
invmcjII(x, lambda, delta, dbounded = FALSE)
``` |

`x, theta` |
numeric vector of singly ( |

`lambda, delta` |
transformation parameters. |

`symm` |
logical flag. If |

`dbounded` |
logical flag. If |

`omega` |
small constant to avoid numerical problems when |

`replace` |
logical flag. If |

These functions transform (back-transform) `x`

or `theta`

conditional on the parameters `lambda`

and `theta`

, using the Box–Cox (`bc`

), Aranda-Ordaz (`ao`

), Proposal I (`mcjI`

) and Proposal II (`mcjII`

) transformations.

Transformed or back-transformed values.

Marco Geraci

Aranda-Ordaz FJ. On two families of transformations to additivity for binary response data. Biometrika 1981;68(2):357-363.

Box GEP, Cox DR. An analysis of transformations. Journal of the Royal Statistical Society Series B-Statistical Methodology 1964;26(2):211-252.

Dehbi H-M, Cortina-Borja M, and Geraci M. Aranda-Ordaz quantile regression for student performance assessment. Journal of Applied Statistics. 2016;43(1):58-71.

Geraci M and Jones MC. Improved transformation-based quantile regression. Canadian Journal of Statistics 2015;43(1):118-132.

Jones MC. Connecting distributions with power tails on the real line, the half line and the interval. International Statistical Review 2007;75(1):58-69.

marco-geraci/Qtools documentation built on Oct. 10, 2019, 9:05 p.m.

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