eigen
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Using iterators for sparse vectors and matrices — Søren Højsgaard and Doug Bates
We illustrate the user of iterators for sparse vectors and matrices and implement a function which determines if a set of nodes in an undirected graph is complete.
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Coercion of matrix to sparse matrix (dgCMatrix) and maintaining dimnames. — Søren Højsgaard
We illustrate 1) a fast way of coercing a dense matrix to a sparse matrix and 2) how to copy the dimnames from the dense to the sparse matrix.
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Using Eigen for eigenvalues — Dirk Eddelbuettel
This example shows how to compute eigenvalues using Eigen