GNU R meta-analyses on P-Values of differential analyses

 Implements a variety of methods for combining p-values in differential
 analyses of genome-scale datasets. Functions can combine p-values across
 different tests in the same analysis (e.g., genomic windows in ChIP-seq,
 exons in RNA-seq) or for corresponding tests across separate analyses
 (e.g., replicated comparisons, effect of different treatment conditions).
 Support is provided for handling log-transformed input p-values, missing
 values and weighting where appropriate.