Plot with white bin

Newbie
1

Hello Rooters,

I have attached plot.Could some one explain what is this “White bin” represent?
If it is 0,It should be dark blue.

Thanks
Dil

Screen Shot 2022-08-23 at 1.56.06 PM
Screen Shot 2022-08-23 at 1.56.06 PM1920×1013 70.9 KB

3

“Empty bins” (with “0” content) are usually not painted (even though the minimum is “0”).

A brutal fix: your_histogram->SetMinimum(-9e-99); // small negative