powerset: Generating power set of a set
In HapEstXXR: Multi-Locus Stepwise Regression

Description Usage Arguments Details Value Note Author(s) Examples

Generates the power set of a given set of values.

1	powerset(x, fileout = NA, only.file = FALSE)

`x`	a vector.
`fileout`	a character string which contains name of the target file.
`only.file`	a logical. Only a file is created, if true (default=FALSE).

Suppose you have a set S. The power set is the set off all subsets of S, including empty set and S itself. The number of elements of the power set is 2^(number of elements of S). You can save the powerset in a file, if a filename fileout is specified.

Empty set will be excluded.

powerset generates a list of all subsets of x, excluding empty set, if only.file=F.

powerset is resctricted to vectors with maximum number of 15 elements. Using only.file=T you can create bigger powersets.

Sven Knueppel