--- PamCut/CollectionActions/Histo1DActions/Histo1DAction/Histo1DAction.h 2009/10/29 17:49:07 1.3 +++ PamCut/CollectionActions/Histo1DActions/Histo1DAction/Histo1DAction.h 2009/12/08 17:37:25 1.4 @@ -168,6 +168,8 @@ void Histo1DAction::_InitHistos() { _CreateHisto(); + if (_bins.size() < 2) // SetXAxis not called by the main program, or wrongly filled (only 1 bin limit) + SetXAxis("Default X", 10, 0., 1.); if (_rootHisto) { Double_t *auxArray = new Double_t[_bins.size()];