Linear codes have long been central to the development of error‐correcting methods in communication and data storage, while matroid theory provides a unifying combinatorial framework for understanding ...

Mathematics of Computation, Vol. 23, No. 108 (Oct., 1969), pp. 787-812 (26 pages) The mathematical and numerical least squares solution of a general linear system of equations is discussed.

This is a preview. Log in through your library . Abstract The search for appropriate statistical methods for hierarchical, multilevel data has been a prominent theme in educational statistics over the ...