Teichlab / cellphonedb

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low mean but very significant #298

Open zhanglab2008 opened 3 years ago

zhanglab2008 commented 3 years ago

Hi team, Great work. I applied CellPhoneDB V2 on my dataset and got very meaningful result. Just one thing has puzzled me for a long time. In the Dot Plot, I saw some interactions having very low log2mean but having very significant p value (p <0.001). How to interpret those interactions? Does it mean that even the expression of the L-R pair in a cell pair is very low but it's still be a significant interaction in that cell pair? Thanks in advance! Zhang

eijynagai commented 3 years ago

I have the same question. No matter how small p values I use, still have a large number of genes on my list.

D-Bug-dotcom commented 2 years ago

yes, it means the expression of the L/R is low but very specific to this pair of cell types.