[CellChat R package] Discussion on bar graph with rankNet

Hi there,

Hope everything is good.

I’m having trouble figuring CellChat tutorial out here. Please, look at ‘Compare the overall information flow of each signaling pathway’.

I understand left one is relative bar graph and right one is absolute number of signaling pathway graph between NL and LS. However, when I see some genes on the left, such as CD40, VEGF, LIGHT, and CSF, it looks almost half percentage of them. Especially, the ratio of NL to LS is 25 to 75 at CSF.

So, my question is what’s meaning of the graph on the left? Plus, what is meaning of the black color of genes?

Thank you for considering my question!