datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,06 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,06 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,06 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,06 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,06 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,06 5:30:00,30 ,       0,13.72912,4.643168,3.960205
sgpcmbeC1.c1,2000,06 6:30:00,30 ,0.783544,56.66898,25.93852,18.01921
sgpcmbeC1.c1,2000,06 7:30:00,30 , 5.64548,100.5674,50.50758,35.03699
sgpcmbeC1.c1,2000,06 8:30:00,30 ,10.42896,132.6529,71.02049,45.00999
sgpcmbeC1.c1,2000,06 9:30:00,30 , 17.4145,157.8273,96.44742,50.51413
sgpcmbeC1.c1,2000,0610:30:00,30 , 9.13786,173.6258,115.0536,51.88908
sgpcmbeC1.c1,2000,0611:30:00,30 ,25.05848,181.5892,125.6171,54.12145
sgpcmbeC1.c1,2000,0612:30:00,30 ,22.26772,184.0952,132.4925,46.55858
sgpcmbeC1.c1,2000,0613:30:00,30 , 8.23839,186.2398,122.5963,52.61756
sgpcmbeC1.c1,2000,0614:30:00,30 ,13.88798,171.7981,119.7617, 49.1065
sgpcmbeC1.c1,2000,0615:30:00,30 ,18.55152,157.0952,105.1406,39.48747
sgpcmbeC1.c1,2000,0616:30:00,30 , 8.25477, 130.288,90.16687,32.84406
sgpcmbeC1.c1,2000,0617:30:00,30 ,5.388829,95.45924,  62.099,26.16704
sgpcmbeC1.c1,2000,0618:30:00,30 , 3.73897,54.27117,31.50885,15.95679
sgpcmbeC1.c1,2000,0619:30:00,30 ,       0, 13.0238,5.663649,3.784017
sgpcmbeC1.c1,2000,0620:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0621:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0622:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0623:30:00,30 ,       0,       0,       0,       0