Histograms in ROOT6 vs ROOT5

Hi there,

I’ve noticed something strange when I tried to run some old root macros and it turns out this seems to be due to the root version I use.

If I run with root5.xxx, the histogram is fine, but when I run it with root6.xxx I only get these king of error bars.

Have someone ever encountered the same problem ?
Thank you very much

Use the “HIST” drawing option.

Perfect. It works !

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