Computes cdf of the skewed symmetric model.

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`q` |
scale or vector of values to compute the cdf. |

`spec1` |
a character string specifying the parent distribution |

`arg1` |
list of arguments/parameters of the parent distribution |

`spec2` |
a character string specifying the parent distribution |

`arg2` |
list of arguments/parameters of the parent distribution |

`lower.tail` |
logical; if |

`log.p` |
logical; if |

The cdf of skewed symmetric model has a general form of:

*
F(x) = \int_{-∞}^{x} 2 h(y) G(y) dy, \quad -∞ < x < ∞
*

where *h(x)* and *G(x)* are the pdf and cdf of parent distributions, respectively.

An object of the same length as `q`

, giving the cdf values computed at `q`

.

Shaiful Anuar Abu Bakar

S.A. Abu Bakar, S. Nadarajah, Z.A. ABSL Kamarul Adzhar, I. Mohamed. gendist: An R package for generated probability distribution models, submitted.

Azzalini, A. (1985). A class of distributions which includes the normal ones. Scandinavian journal of statistics, 171-178.

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