# bdsmatrix v1.3-4

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## Routines for Block Diagonal Symmetric Matrices

This is a special case of sparse matrices, used by coxme.

## Functions in bdsmatrix

 Name Description solve.bdsmatrix Solve a matrix equation using the generalized Cholesky decompostion solve.gchol Solve a matrix equation using the generalized Cholesky decompostion gchol.bdsmatrix-class Class "gchol.bdsmatrix" backsolve Solve an Upper or Lower Triangular System listbdsmatrix List out a bdsmatrix as row/col/value triplets bdsI Sparse identity matrices gchol-class Class "gchol" bdsBlock Block diagonal matrices. gchol Generalized Cholesky decompostion bdsmatrix Create a sparse symmetric block diagonal matrix object as.matrix.bdsmatrix Convert a bdsmatrix to a ordinary (dense) matrix bdsmatrix-class Class "bdsmatrix" bdsmatrix.ibd Create a bdsmatrix from a list bdsmatrix.reconcile Ensure alignment of two bdsmatrix objects No Results!