datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,06 0:30:00,26 ,       0,98.24336,10.12556,24.26898
sgpcmbeC1.c1,2002,06 1:30:00,26 ,       0,193.0081,20.18713,51.60401
sgpcmbeC1.c1,2002,06 2:30:00,26 ,       0,100.0973,11.20964,25.83206
sgpcmbeC1.c1,2002,06 3:30:00,25 ,       0,32.53514, 4.95617,8.381779
sgpcmbeC1.c1,2002,06 4:30:00,25 ,       0,22.01145, 3.85947, 5.56975
sgpcmbeC1.c1,2002,06 5:30:00,26 ,       0, 156.387,12.73246,31.24542
sgpcmbeC1.c1,2002,06 6:30:00,26 ,       0,136.7513,13.59524,29.80451
sgpcmbeC1.c1,2002,06 7:30:00,27 ,       0,173.2946,18.23033, 43.7217
sgpcmbeC1.c1,2002,06 8:30:00,27 ,       0, 119.189,14.32289,26.03176
sgpcmbeC1.c1,2002,06 9:30:00,27 ,       0,119.8935,16.84818,29.53521
sgpcmbeC1.c1,2002,0610:30:00,26 ,       0,125.7018,18.81304,27.69748
sgpcmbeC1.c1,2002,0611:30:00,25 ,       0,150.1792, 18.2573, 32.5844
sgpcmbeC1.c1,2002,0612:30:00,25 ,       0,154.4543,27.10524,39.86456
sgpcmbeC1.c1,2002,0613:30:00,25 ,       0,   336.6,38.09598,73.73704
sgpcmbeC1.c1,2002,0614:30:00,25 ,       0,275.0599,25.71311,55.53981
sgpcmbeC1.c1,2002,0615:30:00,25 ,       0,183.6665,25.60678,43.96792
sgpcmbeC1.c1,2002,0616:30:00,25 ,       0,134.0896,13.65675, 28.0802
sgpcmbeC1.c1,2002,0617:30:00,25 ,       0,117.7591,12.00159,25.33602
sgpcmbeC1.c1,2002,0618:30:00,24 ,       0,98.21106,6.528921,19.81345
sgpcmbeC1.c1,2002,0619:30:00,25 ,       0,     185,13.00558, 38.7551
sgpcmbeC1.c1,2002,0620:30:00,25 ,       0,186.1724, 15.3976,45.65411
sgpcmbeC1.c1,2002,0621:30:00,25 ,       0,436.9623,26.74455,92.32349
sgpcmbeC1.c1,2002,0622:30:00,26 ,       0,258.8341,20.42055,58.43157
sgpcmbeC1.c1,2002,0623:30:00,26 ,       0,13.92034,3.524231,3.678627