BrainNetTest 0.1.0

• Initial CRAN submission.
• Implements the L1-distance ANOVA test for populations of brain networks of Fraiman and Fraiman (2018) doi:10.1038/s41598-018-21688-0.
• Fast permutation procedure for identifying critical edges via a prefix-sum decomposition of the test statistic, reducing complexity from O(K * B * |E| * m) to O(B * |E| * m).
• Helpers to generate synthetic community-structured graphs and to visualise brain networks with communities.