gasper News

gasper 1.1.1 release (02/16/2021)

• correction of an error in laplacian_mat function (in the case of full matrix input).
• replace graphname by matrixname (matrices in the SuiteSparse are not necessarily adjacency matrices).
• error correction in SNR fun (wrong output for matrices)
• add Peak Signal to Noise Ratio (PNSR) function.

gasper 1.1.0 release (02/09/2021)

• fix bug in download_graph function for downloading graph matrix without coordinates.
• add citation info issue#1.
• bibliography of SURE paper updated in the vignettes.
• add boolean argument allowing to export the coefficients of the frame after thresholding (TRUE by default) in SURE*thresh functions (FALSE save memory allocation for large graphs).
• add a new output dim to download_graph providing a url to a temporary file containing the information about the considered matrix.
• add new argument to randsignal to avoid full spectrum calculation.
• add new import (methods, Matrix, RSpectra) to consider large sparse matrices.
• modify randsignal to benefit from sparse computation (much faster).
• add SNR function (to remove rwavelet import used only in vignettes)
• add a new output dim to download_graph providing the numbers of rows, columns and numerically nonzero elements of the sparse matrix.
• add Matrix Market files import (remove data.frame storage to save a lot of memory and speed-up computation) to download_graph.
• add fast forward/inverse sgwt functions (foward_sgwt and inverse_sgwt). Faster than calculation via tight_frame/analysis and potentially useful when frame elements do not need to be calculated.
• add graph extension of the Von Neummann variance estimator using finest scale coefficients (HPFVN).
• add kernel tight-frame evaluation function zetav (to avoid redundancy).
• add new plot_filter function (plot wavelet tight-frame functions).

gasper 1.0.1 release (07/27/2020)

• fix warnings bug SUREthresh functions
• adapt DESCRIPTION to meet CRAN’s expectations (i.e., omit the redundant “in R” from the title, use the Authors@R field and declare Maintainer, Authors and Contributors with their appropriate roles with person() calls, do not start the description with “This package”, package name, title or similar. Just start with “Provides …” or similar, do not start the description with “This package”, package name, title or similar).
• optionally specify a RNG seed (for reproducible experiments) in swissroll.R
• remove adjacency_mat N arg
• Cran resubmission

gasper 1.0.0 release (07/23/2020)

• First release
• Cran submission