An S4 class to store partial bootstrap correspondence analysis results.

`rows`

A list of length three giving the vertices coordinates (

`x`

,`y`

) of the samples convex hull and a identifier (`id`

) to link each row to a sample.`columns`

A list of length three giving the vertices coordinates (

`x`

,`y`

) of the variables convex hull and a identifier (`id`

) to link each row to a variable.`lengths`

A list of two named

`numeric`

vectors giving the convex hull maximum dimension length of samples and variables, respectively.`cutoff`

A length-two

`numeric`

vector giving the cutoff value for samples and variables selection, respectively.`keep`

A list of two

`integer`

vectors giving the subscript of the samples and variables to be kept, respectively.

In the code snippets below, `x`

is a `BootCA`

object.

`x[i, j, drop]`

Extracts informations from a slot selected by subscript

`i`

thru`j`

(see examples).`i`

should be one of "`rows`

" or "`columns`

". Any unambiguous substring can be given.`j`

is a`numeric`

,`integer`

or`character`

vector or empty (missing) or`NULL`

. Numeric values are coerced to`integer`

as by`as.integer`

(and hence truncated towards zero). Character vectors will be matched to the name of the elements. An empty index (a comma separated blank) indicates that all entries in that dimension are selected.`x[[i]]`

Extracts informations from a slot selected by subscript

`i`

.`i`

should be one of "`id`

", "`rows`

", "`columns`

", "`lengths`

", "`cutoff`

" or "`keep`

". Any unambiguous substring can be given.

Other class:
`CA-class`

,
`DateClass`

,
`DiversityIndex`

,
`PermutationOrder-class`

N. Frerebeau