dt_matrix: Upper triangle sparse symmetric triplet matrix to dense...

In robinweide/GENOVA: GENOVA: expore the Hi-C

Upper triangle sparse symmetric triplet matrix to dense matrix

Description

Convenience function for returning square, dense symmetric matrices from the upper triangle of triplet format symmetric matrices.

Usage

dt_matrix(x, i, j, dim, offset)

Arguments

x	A numeric vector containing the data for matrix elements.
i	A integer vector parallel to x containing row positions.
j	A integer vector parallel to x containing column positions.
dim	A integer of length 1 specifying the dimensions of the output matrix.
offset	A integer of length 1 noting a potential offset in the i and j arguments. Particularly useful when lookup up square regions around the diagonal in Hi-C data.

Value

A dim * dim sized matrix.

Note

For reasons of speed, no checks are performed wether the input is compatible with sensible output.

robinweide/GENOVA documentation built on March 14, 2024, 11:16 p.m.