An algorithm for performing differential expression analysis:
pip install git+git://github.com/MaayanLab/chdir.git@master
The characteristic direction: a geometrical approach to identify differentially expressed genes. Neil R Clark, Kevin S Hu, Axel S Feldmann, Yan Kou, Edward Y Chen, Qiaonan Duan and Avi Ma’ayan. BMC Bioinformatics 2014, 15:79.