datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,09 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,09 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,09 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,09 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,09 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,09 5:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,09 6:30:00,30 ,2.486434,34.02146,15.53819,6.556527
sgpcmbeC1.c1,2002,09 7:30:00,30 ,4.081239, 44.8377,16.20558,8.711417
sgpcmbeC1.c1,2002,09 8:30:00,30 ,2.153702,71.45577,20.80133,20.91576
sgpcmbeC1.c1,2002,09 9:30:00,30 ,1.227299,102.9844,19.59056,25.55017
sgpcmbeC1.c1,2002,0910:30:00,30 ,0.695522,126.2733,24.98699,35.93071
sgpcmbeC1.c1,2002,0911:30:00,30 ,0.589177,87.31762,24.54974,27.37014
sgpcmbeC1.c1,2002,0912:30:00,30 ,0.383833,239.0322,34.81732,55.50514
sgpcmbeC1.c1,2002,0913:30:00,30 ,0.413022,84.25118,23.51137,24.33728
sgpcmbeC1.c1,2002,0914:30:00,30 ,0.880592,136.5871,25.72955,35.42777
sgpcmbeC1.c1,2002,0915:30:00,30 ,1.445374, 70.4111, 18.9736,18.77836
sgpcmbeC1.c1,2002,0916:30:00,30 ,3.121482,52.28233,15.67389, 12.4079
sgpcmbeC1.c1,2002,0917:30:00,30 ,2.881284,42.34003,17.50059,10.50722
sgpcmbeC1.c1,2002,0918:30:00,30 ,       0,28.61829,11.37792,7.306605
sgpcmbeC1.c1,2002,0919:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0920:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0921:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0922:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0923:30:00,27 ,       0,0.258199,0.009563, 0.04969