Remove redundant plot

HltEfficiencyChecker/scripts/hlt_line_efficiencies.py

@@ -614,28 +614,30 @@ def main():
             if not args.TOS_match_to:
                 args.TOS_match_to = ",".join(particles_that_have_tos_effs_in_tree)
 
-            for mcp, denom_key, logx in product(args.TOS_match_to.split(','), denoms, [True, False]):
-                # All TOS effs w.r.t. this particle
-                tos_lines_this_mcp = [tos_line for tos_line in tos_lines if tos_line.split("_")[0] == mcp]
-                # Plot the shape hist
-                eff_histos[denom_key + "__distr"].Draw("HIST")
-                events_with_this_denom = get_events_in_plot(
-                    denom_key)
+            if len(dec_lines) > 1:
+                # If not then this plot ends up the same as one produced below
+                for mcp, denom_key, logx in product(args.TOS_match_to.split(','), denoms, [True, False]):
+                    # All TOS effs w.r.t. this particle
+                    tos_lines_this_mcp = [tos_line for tos_line in tos_lines if tos_line.split("_")[0] == mcp]
+                    # Plot the shape hist
+                    eff_histos[denom_key + "__distr"].Draw("HIST")
+                    events_with_this_denom = get_events_in_plot(
+                        denom_key)
 
-                for tos_line in tos_lines_this_mcp:
-                    eff_histos["{}__{}__eff".format(
-                        denom_key, tos_line)].Draw("SAME PE0")
+                    for tos_line in tos_lines_this_mcp:
+                        eff_histos["{}__{}__eff".format(
+                            denom_key, tos_line)].Draw("SAME PE0")
 
-                line_at_one, legend = plot_legend_and_line_at_one(
-                    [denom_key], tos_lines_this_mcp, events_with_this_denom,
-                    denom_key, logx)
-                line_at_one.Draw("SAME")
-                if not args.no_legend: legend.Draw()
+                    line_at_one, legend = plot_legend_and_line_at_one(
+                        [denom_key], tos_lines_this_mcp, events_with_this_denom,
+                        denom_key, logx)
+                    line_at_one.Draw("SAME")
+                    if not args.no_legend: legend.Draw()
 
-                c.Print('{}TOSEfficiencies__{}__{}__{}.{}'.format(
-                    args.plot_prefix, mcp, denom_key,
-                    ("log" if logx else "") + var.replace(
-                        ':', '_'), args.plot_format))
+                    c.Print('{}TOSEfficiencies__{}__{}__{}.{}'.format(
+                        args.plot_prefix, mcp, denom_key,
+                        ("log" if logx else "") + var.replace(
+                            ':', '_'), args.plot_format))
 
             # Now make a plot for each line with all the specified denominators
             for line in lines: