datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,04 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,04 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,04 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,04 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,04 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,04 5:30:00,30 ,       0,1.093991,0.158042,0.308313
sgpcmbeC1.c1,2001,04 6:30:00,30 ,0.009331,38.85192,15.47024,14.34618
sgpcmbeC1.c1,2001,04 7:30:00,30 ,0.056004,80.51888,34.49483,26.56827
sgpcmbeC1.c1,2001,04 8:30:00,30 , 0.04604, 168.945,43.16875, 38.3001
sgpcmbeC1.c1,2001,04 9:30:00,30 ,0.051831,143.5819,47.75536,39.98819
sgpcmbeC1.c1,2001,0410:30:00,30 ,0.433258,211.9957,48.61047,54.37593
sgpcmbeC1.c1,2001,0411:30:00,30 ,0.378433,271.1221,60.06582, 79.4619
sgpcmbeC1.c1,2001,0412:30:00,30 , 0.70038,257.6671,59.35439, 74.4154
sgpcmbeC1.c1,2001,0413:30:00,30 ,0.045858,271.7245,80.75901,86.07714
sgpcmbeC1.c1,2001,0414:30:00,30 ,0.422036,253.2334,91.20346,76.19387
sgpcmbeC1.c1,2001,0415:30:00,30 ,0.417397,171.4116,75.75947,51.60226
sgpcmbeC1.c1,2001,0416:30:00,30 ,0.145714, 151.847,55.30561,36.92639
sgpcmbeC1.c1,2001,0417:30:00,30 ,       0, 81.2049,38.37151,22.22693
sgpcmbeC1.c1,2001,0418:30:00,30 ,       0,36.30925,16.60726, 13.7163
sgpcmbeC1.c1,2001,0419:30:00,29 ,       0,1.877111,0.265125,0.498169
sgpcmbeC1.c1,2001,0420:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0421:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0422:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0423:30:00,30 ,       0,       0,       0,       0