find_crossprod_column: Find Column for Cross-Product

In swnydick/mupp: Multi-Unidimensional Pairwise Preference (MUPP) IRT Model

Find Column for Cross-Product

Description

Given two dimension and the total number of dimensions, find the column indexing the appropriate cross-product.

Usage

find_crossprod_column(dim1, dim2, n_dims, init = 0L)

Arguments

dim1	the first dimension
dim2	the second dimension
n_dims	the total number of dimensions
init	an integer indicating the initial starting value for the set of integers included in the permutation. See Details.

Details

init is useful for indexing C vs R code. If init = 0, then the indices will work with 0 indexed languages, such as C or Python. If init = 1, then the indices will work with 1 indexed languages, such as R.

     This function assumes that the first n_dims columns are the dims,
     the next n_dims - 1 columns are the cross-products of dimension 1 with
     the remaining dims, the next n_dims - 2 columns are the cross-products
     of dimension 2 with the remaining dims > 2, etc.

Value

The index of the cross-product column.

Author(s)

Steven Nydick, [e-mail]

See Also

find_crossprod_dims

swnydick/mupp documentation built on July 8, 2022, 7:59 a.m.