Empty bin content in ahistogram

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1

I s there a way to “empty” the bin content and its associate error of a histogram?

The problem is the following… My histogram is the output of some calculations. In these calculations it’s possible to have NaN’s and inf’s. So far to overcome this I am doing the follwing

if ( isfinite(x) && isfinite(errx) ){ histo->SetBinContent(i, x); histo->SetBinError(i, errx); } else{ histo->SetBinContent(i, 1.e-15); histo->SetBinError(i, 1e.-15); }

The problem is that you can’t always be sure about that 1.e-15 is the right value. If For instance the values in the histogram are in the order of 1.e-16 then you set a bin content with a bigger value…

So I was wondering whether there is smarter way, something like “deleting” or “emptying” the bin.

2

Hi,

why not to set it exactly to zero?

3

Because if your histogram contains negative values, you will get fake spike-like structures!

4

The way to do it is setting the bin content to 0.

5

Yes, along the Y axis. However, you seem to have a 1D histogram. Even if it has negative X values, setting bin content to 0 should do the trick, shouldn’t it?