This is a Mathematica package (versions 7.0 and above) for various phase and cluster analyses of circadian oscillations in the SCN. This is a clone of the project in sourceforge.
Myung J, Hong S, Hatanaka F, Nakajima Y, De Schutter E, Takumi T (2012) Period coding of Bmal1 oscillators in the suprachiasmatic nucleus. J Neurosci 32:8900-18. Link the article