Changes goodput calculation.

plot_transmission_timeline.py

 
     print("Calculate goodput...")
 
-    print(transmission_df)
+    #print(transmission_df)
 
     # key for columns and level for index
     transmission_df["goodput"] = transmission_df["payload_size"].groupby(pd.Grouper(level="datetime", freq="{}s".format(args.interval))).transform("sum")
-
-
     #transmission_df["goodput"] = transmission_df["payload_size"].rolling("{}s".format(args.interval)).sum()
     transmission_df["goodput"] = transmission_df["goodput"].apply(
         lambda x: ((x * 8) / args.interval) / 10**6