datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,06 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,06 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,06 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,06 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,06 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,06 5:30:00,30 ,       0,34.28758,20.10306,9.525239
sgpcmbeC1.c1,2006,06 6:30:00,30 , 13.4972,200.9805,136.6616,53.41964
sgpcmbeC1.c1,2006,06 7:30:00,30 ,71.52943, 393.569, 302.473,94.12922
sgpcmbeC1.c1,2006,06 8:30:00,30 ,39.26993,581.4943,456.9772,167.1652
sgpcmbeC1.c1,2006,06 9:30:00,30 ,13.27144,748.8822,611.1512,223.4609
sgpcmbeC1.c1,2006,0610:30:00,30 ,27.84998,936.9913,756.9539,244.3078
sgpcmbeC1.c1,2006,0611:30:00,30 ,67.71515,968.5959,836.3491,244.1428
sgpcmbeC1.c1,2006,0612:30:00,30 ,202.9554,1001.435,867.5186,209.2331
sgpcmbeC1.c1,2006,0613:30:00,30 ,277.3747, 967.324, 844.542,169.3265
sgpcmbeC1.c1,2006,0614:30:00,30 ,404.0422,938.4556,799.4289,124.0708
sgpcmbeC1.c1,2006,0615:30:00,30 ,275.2494,796.0844,639.9027,139.6589
sgpcmbeC1.c1,2006,0616:30:00,30 ,181.8342, 591.558,517.7537,95.42704
sgpcmbeC1.c1,2006,0617:30:00,30 ,268.0956,409.4866,354.7059,35.12907
sgpcmbeC1.c1,2006,0618:30:00,30 ,73.14236,198.8689, 159.144,32.33924
sgpcmbeC1.c1,2006,0619:30:00,30 ,5.131515,51.54688,25.14755, 9.40882
sgpcmbeC1.c1,2006,0620:30:00,30 ,       0,0.869164, 0.04014,0.165003
sgpcmbeC1.c1,2006,0621:30:00,30 ,       0,0.050154,0.001672,0.009157
sgpcmbeC1.c1,2006,0622:30:00,30 ,       0,0.072727,0.002424,0.013278
sgpcmbeC1.c1,2006,0623:30:00,30 ,       0,       0,       0,       0