fixed FFT plot labellin

melreport.cc

@@ -145,7 +145,7 @@ namespace Melodic{
 			     fact/(opts.tr.value()*melodat.get_mix().Nrows()), 150,
 			     0,2);
 	else
-	  newplot.timeseries(empty | melodat.get_fmix().Column(cnum).t(),
+	  newplot.timeseries(melodat.get_fmix().Column(cnum).t(),
 			     report.appendDir(string("f")+
 					      num2str(cnum)+".png"),
 			     string(string("FFT of timecourse (in cycles); ")