densify: Densify with explicit zeroes
In sparseinv: Computation of the Sparse Inverse Subset

Description Usage Arguments Value Examples

This function takes two sparse matrices and returns the first matrix padded with explicit zeros so that it is at least dense (probably denser) than the second matrix. This function only works with matrices of class Matrix #'

1	densify(A, B)

`A`	object of class Matrix
`B`	object of class Matrix

object of class Matrix

require(Matrix)
Q1 <- sparseMatrix(i = c(1, 2, 2), j = c(1, 1, 2), x = c(0.1, 0.2, 1))
Q2 <- sparseMatrix(i = c(1, 1, 2, 2),j = c(1, 2, 1, 2), x = c(0.1, 0.3, 0.2, 1))
Q1dens <- densify(Q1, Q2)
Q1
Q1dens