datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,06 0:30:00,28 ,       0,114.2925, 7.74097,21.89036
sgpcmbeC1.c1,2003,06 1:30:00,28 ,       0,185.5309,14.21965,42.65228
sgpcmbeC1.c1,2003,06 2:30:00,30 ,       0,249.3685,22.59891,55.56451
sgpcmbeC1.c1,2003,06 3:30:00,30 ,       0,252.4491,24.97054,64.23942
sgpcmbeC1.c1,2003,06 4:30:00,29 ,       0,89.30882, 12.4429,20.00155
sgpcmbeC1.c1,2003,06 5:30:00,29 ,       0,86.99086,14.95045,22.80406
sgpcmbeC1.c1,2003,06 6:30:00,28 ,       0, 176.465,25.27491,45.89655
sgpcmbeC1.c1,2003,06 7:30:00,30 ,       0,293.8914,40.66993,72.07627
sgpcmbeC1.c1,2003,06 8:30:00,29 ,       0,147.9437,19.36497, 33.2974
sgpcmbeC1.c1,2003,06 9:30:00,30 ,       0,225.7537,23.04778,44.60539
sgpcmbeC1.c1,2003,0610:30:00,30 ,       0,  89.178,21.49212,26.51725
sgpcmbeC1.c1,2003,0611:30:00,30 ,       0,193.8256,24.53604,40.64914
sgpcmbeC1.c1,2003,0612:30:00,30 ,       0,81.28361,21.74555,25.54622
sgpcmbeC1.c1,2003,0613:30:00,30 ,       0, 231.702,33.03686,50.98403
sgpcmbeC1.c1,2003,0614:30:00,30 ,       0,227.8279,35.10774,53.78622
sgpcmbeC1.c1,2003,0615:30:00,30 ,       0,211.1638,34.26636,47.80744
sgpcmbeC1.c1,2003,0616:30:00,29 ,       0,194.5316,30.92994,52.80628
sgpcmbeC1.c1,2003,0617:30:00,30 ,       0,216.2969,35.27636, 60.5663
sgpcmbeC1.c1,2003,0618:30:00,30 ,0.194438,328.7791,27.11694,61.28731
sgpcmbeC1.c1,2003,0619:30:00,29 ,0.539283,123.5246,14.82956,28.60123
sgpcmbeC1.c1,2003,0620:30:00,29 ,0.812709,145.8913,19.77585,37.55016
sgpcmbeC1.c1,2003,0621:30:00,29 ,       0,141.0634, 14.0539,29.21422
sgpcmbeC1.c1,2003,0622:30:00,30 ,       0,201.7524,20.04432,45.95389
sgpcmbeC1.c1,2003,0623:30:00,30 ,       0,250.1955,28.71193,66.06548