Clarification on Y-axis height within the same tumor type in expression plot

[Giacomo_Graziano]

Hello,

I was analyzing a plot showing the expression of a gene (PHGR1) in LUAD and COAD cell lines, and I noticed that within each tumor type, the points (representing the cell lines) have varying heights along the Y-axis. I understand that the Y-axis differentiates between the two tumor types, but could you clarify what the difference in height represents within a single tumor type (LUAD or COAD)? Is it purely for visual separation, or does it carry any specific biological or technical meaning?

[pmontgom]

No, there is no biological or technical meaning in the y-values. The Y-values are jittered to avoid all points being plotted on top of one another. Purely for visual separation.

Thanks,
Phil