How to perform CCI simulation by cellCellSimulate function

Authored by:Koki Tsuyuzaki, Manabu Ishii, Itoshi Nikaido inscTensor 2.17.0.
Source:scTensor_3_CCI_Simulation.Rmd, Vignette:scTensor_3_CCI_Simulation.html. Last updated:2020-09-15.