Computes value to produce a quantile-quantile plot in *-log_10* scale of
the given *p*-values.

1 2 3 |

`ps` |
a (non-empty) numeric vector of |

`n` |
number of |

`level` |
significance level. |

For `pqq`

, a list containing the following components (all in
*-log_10* scale):

`x` |
a vector of (sorted) expected |

`y` |
a vector of (sorted) observed |

For `pqq.ci`

, a matrix with the lower and upper bounds for the
confidence interval at the given significance level.

Questions? Problems? Suggestions? Tweet to @rdrrHQ or email at ian@mutexlabs.com.

Please suggest features or report bugs with the GitHub issue tracker.

All documentation is copyright its authors; we didn't write any of that.