News for Package "rARPACK"

Changes in rARPACK version 0.11-0

NEW FEATURES

• Now rARPACK becomes a simple shell of the RSpectra package.

Changes in rARPACK version 0.10-0

BUG FIXES

• Updated the backend Spectra library, which fixed the compatibility with Eigen >= 3.2.6

Changes in rARPACK version 0.9-0

BUG FIXES

• Fixed a bug that causes the algorithm not converging on some matrices

Changes in rARPACK version 0.8-1

BUG FIXES

• Fixed a compilation problem on Solaris

Changes in rARPACK version 0.8-0

NEW FEATURES

• The backend program is now changed from ARPACK to Spectra, which brings cleaner code and better performance.

• eigs_sym() now accepts more matrix types.

• Added a C interface for other packages to link to.

BUG FIXES

• Fixed a bug reported by xshi19 (#8)

• Fixed a performance issue reported by swajnautcz (#10)

Changes in rARPACK version 0.7-0

NEW FEATURES

• Support for implicit matrix, contributed by Jiali Mei. User can supply a function FUN rather than an explicit matrix to eigs(), and the eigenvalues/eigenvectors of this operator will be computed. FUN(x, args) must return a vector of the same length as x.

• eigs() will test the symmetry of matrix before actual computation, since symmetric matrices can guarantee real eigenvalues and eigenvectors, and the numerical result is more stable.

BUG FIXES

• C++ code of svds() is completely rewritten. Now it is more readable and easier to maintain.

• Fix a bug possibly coming from ARPACK, which sometimes gives incorrect result of complex eigenvectors.

• Avoid using a C random number generator.

Changes in rARPACK version 0.6-0

NEW FEATURES

• Add support for new matrix types: dgeMatrix and dgRMatrix.

• eigs() now allows a full Eigen Decomposition, meaning that all the eigenvalues are calculated. In this case eigs() is simply a wrapper of eigen(), and with a warning issued.

• Ditto for svds().

BUG FIXES

• Rewrite C++ code using classes and templates.

• Fix errors in checking the values of k and ncv.

Changes in rARPACK version 0.5-0

NEW FEATURES

• Add svds() function to calculate truncated SVD.

BUG FIXES

• Now sort eigenvalues in decreasing order.

• Rename eigs.sym() to eigs_sym() to avoid confusion.

• Fix a matrix out-of-bound error.

Changes in rARPACK version 0.4-0

NEW FEATURES

• Implement shift-and-invert mode for all supported eigen problems.

BUG FIXES

• Update arpack-ng to 3.1.4.

Changes in rARPACK version 0.3-0

NEW FEATURES

• Now eigs() supports real symmetric matrices.

Changes in rARPACK version 0.2-0

NEW FEATURES

• Now eigs() supports sparse real nonsymmetric matrices of the class dgCMatrix, defined in the Matrix package.

Changes in rARPACK version 0.1-0

NEW FEATURES

• Initial version. For now eigs() supports dense real nonsymmetric matrices.