Description Usage Arguments Details Value Examples

Efficient weighted cross tabulation of two factors and a block

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`ix` |
a integer of positive values with zero indicating a missing. |

`iy` |
an optional integer of positive values with zero indicating a missing. |

`block` |
an optional blocking factor without missings. |

`weights` |
an optional vector of weights, integer or double. |

`subset` |
an optional integer vector indicating a subset. |

`checkNAs` |
a logical for switching off missing value checks. |

A faster version of `xtabs(weights ~ ix + iy + block, subset)`

.

If `block`

is present, a three-way table. Otherwise,
a one- or two-dimensional table.

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