combos {hier.part}R Documentation

All combinations of a hierarchy of models of n variables

Description

Lists a matrix of combinations of 1 to n variables in ascending order

Usage

  combos(n)

Arguments

n an integer: the number of variables

Details

Lists hierarchy of all possible combinations of n variables in ascending order, starting with 1 variable, then all combinations of 2 variables, and so on until the one combination with all n variables. This function is used by all.regs to structure the models required for hierarchical partioning. This function requires the gtools package in the gregmisc bundle.

Value

a list containing

ragged a matrix with zeroes in empty elements and 1 in column 1, 2 in column 2 ... n in column n for full elements
binary a matrix as for ragged, but with 1 in all full elements

Author(s)

Chris Walsh Chris.Walsh@sci.monash.edu.au

See Also

all.regs


[Package hier.part version 1.0-3 Index]