gRbase: api-array-07 – R documentation

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api-array-07

Array operations (2007)

Description

Array operations; created to facilitate the gRain package in 2007. Now largely replaceable by other (often faster) functions implemented in Rcpp.

Usage

tablePerm(tab, perm, resize = TRUE, keep.class = FALSE)

tableMult(tab1, tab2)

tableDiv(tab1, tab2)

tableOp(tab1, tab2, op = "*")

tableOp2(tab1, tab2, op = `*`, restore = FALSE)

tableOp0(tab1, tab2, op = `*`)

tableSlice(tab, margin, level, impose)

tableSlicePrim(tab, mar.idx, lev.idx)

tableMargin(tab, margin, keep.class = FALSE)

tableGetSliceIndex(tab, margin, level, complement = FALSE)

tableSetSliceValue(tab, margin, level, complement = FALSE, value = 0)

Arguments

`tab, tab1, tab2`	Arrays with named dimnames.
`perm`	A permutation; either indices or names.
`resize`	A flag indicating whether the vector should be resized as well as having its elements reordered (default TRUE).
`keep.class`	Obsolete argument.
`op`	The operation; choices are `"*"`, `"/"`, `"+"`, `"-"`.
`restore`	Not so clear anymore.
`margin`	Index or name of margin.
`level`	Corresponding level of margin.
`impose`	Value to be imposed.
`mar.idx`	Index of margin
`lev.idx`	Index of level
`complement`	Should values be set for the complement?
`value`	Which value should be set

Details

'tableOp0' is brute force implementation based on dataframes. It is very slow, but useful for error checking.

gRbase

A Package for Graphical Modelling in R

v1.8-6.7

GPL (>= 2)

Authors

Søren Højsgaard <sorenh@math.aau.dk>

Initial release