datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,03 0:30:00,26 ,       0,0.134473,0.009034,0.032277
sgpcmbeC1.c1,2007,03 1:30:00,25 ,       0, 0.12583,0.005033,0.025166
sgpcmbeC1.c1,2007,03 2:30:00,26 ,       0,0.278634,0.016195,0.060368
sgpcmbeC1.c1,2007,03 3:30:00,27 ,       0,0.414391,0.015348, 0.07975
sgpcmbeC1.c1,2007,03 4:30:00,27 ,       0,0.062587,0.002318,0.012045
sgpcmbeC1.c1,2007,03 5:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,03 6:30:00,27 ,       0,22.44104,3.233618,4.632675
sgpcmbeC1.c1,2007,03 7:30:00,27 , 3.49068,208.7425,66.57604,44.06479
sgpcmbeC1.c1,2007,03 8:30:00,26 ,5.329229,369.1974,198.8749,108.4805
sgpcmbeC1.c1,2007,03 9:30:00,28 ,10.90285,626.3184,341.8247,176.4063
sgpcmbeC1.c1,2007,0310:30:00,28 , 12.9132,774.7881, 471.351,226.5253
sgpcmbeC1.c1,2007,0311:30:00,28 ,12.50542,877.5394,561.1157,279.1785
sgpcmbeC1.c1,2007,0312:30:00,28 ,31.20609,844.5314,600.5287, 276.268
sgpcmbeC1.c1,2007,0313:30:00,28 ,33.89359, 809.238, 569.948,285.6067
sgpcmbeC1.c1,2007,0314:30:00,28 ,12.61626,735.0087,507.8559,236.8838
sgpcmbeC1.c1,2007,0315:30:00,29 ,6.838439,578.2947,415.2596,183.5047
sgpcmbeC1.c1,2007,0316:30:00,29 ,13.74006,385.7876,264.6475,122.7483
sgpcmbeC1.c1,2007,0317:30:00,29 ,5.831073,203.7981,122.8258,50.48339
sgpcmbeC1.c1,2007,0318:30:00,29 ,       0,42.06292,13.68959, 8.28065
sgpcmbeC1.c1,2007,0319:30:00,29 ,       0,3.377025,0.238511,0.796587
sgpcmbeC1.c1,2007,0320:30:00,29 ,       0,5.863965, 0.31705,1.150348
sgpcmbeC1.c1,2007,0321:30:00,27 ,       0,7.253848,0.411362,  1.4663
sgpcmbeC1.c1,2007,0322:30:00,27 ,       0,6.451904,0.330801,1.278375
sgpcmbeC1.c1,2007,0323:30:00,27 ,       0,6.372889,0.336032,1.267748