api-pct-operations | R Documentation |

Addition, subtraction etc. of arrays

a1 %a+% a2 a1 %a-% a2 a1 %a*% a2 a1 %a/% a2 a1 %a/0% a2 tab1 %a_% marg tab1 %a==% tab2 tab1 %a^% extra tab1 %aperm% perm tab1 %aalign% tab2 tab1 %aslice% slice tab1 %aslice*% slice tab1 %amarg% marg

`tab1, tab2` |
Multidimensional arrays with named dimnames (we call them 'named arrays'). |

`marg` |
A vector of indices or dimnames or a right hand sided formula giving the desired marginal. |

`extra` |
List defining the extra dimensions. |

`perm` |
A vector of indices or dimnames or a right hand sided formula giving the desired permutiation. |

`slice` |
A list of the form name=value. |

`a, a1, a2` |
Arrays (with named dimnames) |

Søren Højsgaard, sorenh@math.aau.dk

hec <- HairEyeColor a1 <- tabMarg(hec, c("Hair", "Eye")) a2 <- tabMarg(hec, c("Hair", "Sex")) a3 <- tabMarg(hec, c("Eye", "Sex")) ## Binary operations a1 %a+% a2 a1 %a-% a2 a1 %a*% a2 a1 %a/% a2

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