Good evening, dear rooters.
I have some problem with TLegend. How I can plot TLegend color same as data points color? Sorry, for my english.9B_40MeV.pdf (18.5 KB)
mass2.C (2.0 KB)
9Be_elas_40Mev.txt (1.1 KB)
9B_gs_40MeV.txt (1.1 KB)
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1 - There is no SetMarkerColor for TLegend, so delete that line.
2 - Your graphs don’t have names, so you should use the name of the TGraph objects (variables); in this case, remove the quotations when adding them to the TLegend:
or give them names (
Gr1->SetName("Gr1");...) before adding them.