datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,06 0:30:00,30 ,       0,  0.0268,0.001769,0.006731
sgpcmbeC1.c1,1999,06 1:30:00,30 ,       0,0.047076,0.001569,0.008595
sgpcmbeC1.c1,1999,06 2:30:00,30 ,       0,0.045264,0.002007,0.008613
sgpcmbeC1.c1,1999,06 3:30:00,30 ,       0,0.004676, 0.00016,0.000853
sgpcmbeC1.c1,1999,06 4:30:00,30 ,       0, 0.15464,0.016188,0.037601
sgpcmbeC1.c1,1999,06 5:30:00,30 ,0.033095,15.43191,3.074363,4.595635
sgpcmbeC1.c1,1999,06 6:30:00,30 ,0.060795,135.2438,39.19605,46.50044
sgpcmbeC1.c1,1999,06 7:30:00,30 ,0.214768,317.9272,122.4599,117.4309
sgpcmbeC1.c1,1999,06 8:30:00,30 ,0.059668,498.5719,199.4106,186.3619
sgpcmbeC1.c1,1999,06 9:30:00,30 ,0.091568, 662.747,306.7889,230.8437
sgpcmbeC1.c1,1999,0610:30:00,30 , 0.23085,795.7869,352.6855,283.6992
sgpcmbeC1.c1,1999,0611:30:00,30 ,0.113671,875.0757,382.8247,299.9439
sgpcmbeC1.c1,1999,0612:30:00,30 ,0.114605,903.1521,356.7996,321.0499
sgpcmbeC1.c1,1999,0613:30:00,30 ,       0,868.4094,323.3939,309.6638
sgpcmbeC1.c1,1999,0614:30:00,30 ,       0,782.4013,306.4842,290.9738
sgpcmbeC1.c1,1999,0615:30:00,30 ,       0,653.7069,276.3659,254.3788
sgpcmbeC1.c1,1999,0616:30:00,30 ,0.208168,487.4167,202.8701,172.9479
sgpcmbeC1.c1,1999,0617:30:00,30 , 0.00193,321.4162,115.2905,120.9432
sgpcmbeC1.c1,1999,0618:30:00,30 ,0.008514,138.6312,42.66335,53.70933
sgpcmbeC1.c1,1999,0619:30:00,30 ,0.000027, 17.1891,5.035435,6.447329
sgpcmbeC1.c1,1999,0620:30:00,30 ,       0,0.107942,0.018079,0.030739
sgpcmbeC1.c1,1999,0621:30:00,30 ,       0,0.001758,0.000068,0.000323
sgpcmbeC1.c1,1999,0622:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0623:30:00,30 ,       0,0.022793,0.000782,0.004159