-parser.add_option("-p", "--password", action="store", dest="password", help = "API password")
+parser.add_option("-p", "--password", action="store", dest="password", help = "API password")
+parser.add_option("-g", "--graph-only", action="store_true", dest="graph_only", help = "Only plot the current data, then exit")
+parser.add_option("-l", "--plot-length", action="store", dest="plot_length", help = "Plot x-axis (time) length in seconds")