Operate on selected histgrams
If two histograms (or more for Add) are selected one can
perform the following operations:
+ Add: hist1 + factor*hist2
- Sub: hist1 - factor*hist2
* Mul: hist1 * factor*hist2
* Div: hist1 / (factor*hist2)
The resulting histograms are shown and stored in memory with
new names. Note that in this case the order of selection is
important.
If only 1 histogram is selected with operation multiply then
this gets scaled
For operation Add any number of selections are possible.
Rebin a selected histogram using the selected (green) value.
The new bin content may the sum or average of the original
bins