datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,10 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,10 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,10 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,10 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,10 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,10 5:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,10 6:30:00,31 ,       0,9.529922,2.654688,2.847312
sgpcmbeC1.c1,2002,10 7:30:00,31 ,2.948744,86.31728,36.43817,25.49581
sgpcmbeC1.c1,2002,10 8:30:00,31 ,  8.7176,198.4487, 90.7744,57.74846
sgpcmbeC1.c1,2002,10 9:30:00,31 ,17.99067,323.0386,129.3143,79.86174
sgpcmbeC1.c1,2002,1010:30:00,31 ,28.76754,339.9804,163.2982,91.62657
sgpcmbeC1.c1,2002,1011:30:00,31 ,59.75599,390.0128,178.8887, 105.099
sgpcmbeC1.c1,2002,1012:30:00,31 ,18.41286,386.5324, 194.721,110.7387
sgpcmbeC1.c1,2002,1013:30:00,31 ,57.19373,341.2128,177.2206, 100.093
sgpcmbeC1.c1,2002,1014:30:00,31 ,18.38905,354.9939, 151.788,85.09756
sgpcmbeC1.c1,2002,1015:30:00,31 ,16.57269,226.8966,106.4953,57.38791
sgpcmbeC1.c1,2002,1016:30:00,31 ,11.44424,140.7612,64.12998,36.73831
sgpcmbeC1.c1,2002,1017:30:00,31 ,0.102872,46.09702,18.35948,13.33502
sgpcmbeC1.c1,2002,1018:30:00,31 ,       0,  1.0818,0.119125,0.275634
sgpcmbeC1.c1,2002,1019:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,1020:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,1021:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,1022:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,1023:30:00,30 ,       0,       0,       0,       0