sdcHashingDefinitionClass-class: Hashing Definition (S4 Class)
In sdcTarget: Statistical Disclosure Control Substitution Matrix Calculator

Description Usage Arguments Details Methods (by generic) Slots Examples

This class defines the data hash that is used to identify cells to be targeted for statistical disclosure control.

1 2	## S4 method for signature 'sdcHashingDefinitionClass' initialize(.Object, ...)

`.Object`	A `sdcHashingDefinitionClass` object.
`...`	The optional parameters specifying the data and whether `NA` values are to be recoded and hashed. Recoding is `TRUE` by default.

The hashing definition presently handles only categorical fields, which limits the applicability of this software accordingly.

initialize:

parts: The number of hashing components.
coverage: The number of elements in each hashing component.
lengths: The number of levels of each field to be hashed.
na.exists: Whether there is an NA value in each field to be hashed.
na.recode: Whether NA values should be treated as levels.
levels: The number of levels of each field to be hashed.

new("sdcHashingDefinitionClass")
new("sdcHashingDefinitionClass")
my.X <- data.frame(matrix(ifelse(runif(500)>.5, TRUE, FALSE), ncol = 5))
new("sdcHashingDefinitionClass", X = my.X)
new("sdcHashingDefinitionClass", X = my.X, na.recode = FALSE)