Implements the estimation of local (and global) association measures: Ducher's Z, pointwise mutual information, normalized pointwise mutual information and chi-squared residuals. The significance of local (and global) association is accessed using p-values estimated by permutations. Finally, using local association subgroup analysis, it identifies if the association between variables is dependent on the value of another variable.
zebu R package implements different tools related to local association measures in three main functions. It replaces the previous web application written using
lassie estimates local (and global) association measures: Ducher's Z, pointwise mutual information and normalized pointwise mutual information.
permtest accesses the significance of local (and global) association values using p-values estimated by permutations.
subgroups identifies if the association between variables is dependent on the value of another variable.
Get the released version from CRAN:
or the development version from Github:
Please read the vignette.
zebu 0.1 Copyright (C) 2017
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
The GNU General Public License is available at http://www.gnu.org/licenses/
The source code can be found at https://github.com/oliviermfmartin/zebu
Added control to how dataset should be permuted through group argument
Added progress bar to parallelized permutation test
Changed parallelization interface to foreach and parallel
Corrected typos in vignette
When p-value is estimated to be zero by permutations, displays that it is inferior to one over number of permutations and not equal to zero
Corrected formula for estimating p-values ()
Added plots describing dataset and corrected typos in vignette
Removed buggy parallel interface (too many cross-platform problems)