datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,02 0:30:00,28 , 197.842,316.4482,253.5795,35.11054
sgpcmbeC1.c1,2006,02 1:30:00,28 , 197.372,321.3478,255.9349,37.55042
sgpcmbeC1.c1,2006,02 2:30:00,28 ,193.9542,324.3856,256.4993,35.80119
sgpcmbeC1.c1,2006,02 3:30:00,28 , 194.747,321.5705,258.8136,37.52086
sgpcmbeC1.c1,2006,02 4:30:00,28 , 195.277,315.2387,256.8614,35.40238
sgpcmbeC1.c1,2006,02 5:30:00,28 ,194.0662, 312.049,251.7233,32.37413
sgpcmbeC1.c1,2006,02 6:30:00,28 , 194.335,312.4261,250.2504,31.29652
sgpcmbeC1.c1,2006,02 7:30:00,28 , 194.627,312.6815,251.6029,31.16006
sgpcmbeC1.c1,2006,02 8:30:00,28 ,196.5882,310.1718,250.4117,30.10385
sgpcmbeC1.c1,2006,02 9:30:00,28 ,202.2679, 307.625, 254.663,26.82273
sgpcmbeC1.c1,2006,0210:30:00,28 ,215.8725, 302.013,259.1391,24.88187
sgpcmbeC1.c1,2006,0211:30:00,28 ,217.7147,318.2289,261.3402,25.53886
sgpcmbeC1.c1,2006,0212:30:00,28 ,  221.14,320.7857,264.4822,25.31325
sgpcmbeC1.c1,2006,0213:30:00,27 ,222.6693,330.4194,266.1088,26.62673
sgpcmbeC1.c1,2006,0214:30:00,28 ,223.9371,333.5119,265.2708,26.96893
sgpcmbeC1.c1,2006,0215:30:00,28 ,224.2251,339.7796,267.1149,31.12998
sgpcmbeC1.c1,2006,0216:30:00,28 , 222.361,335.7928,266.3391,31.98983
sgpcmbeC1.c1,2006,0217:30:00,28 ,218.2025,350.5562,266.1889,32.44096
sgpcmbeC1.c1,2006,0218:30:00,28 ,215.1635,334.0472,263.0017,32.35072
sgpcmbeC1.c1,2006,0219:30:00,28 , 211.308,329.1061,260.3666,32.40643
sgpcmbeC1.c1,2006,0220:30:00,28 ,203.0271,325.3888,256.5628, 32.1762
sgpcmbeC1.c1,2006,0221:30:00,28 ,201.5242,324.8419,252.8742,33.21956
sgpcmbeC1.c1,2006,0222:30:00,28 ,199.0475,319.0378,250.8747,32.66415
sgpcmbeC1.c1,2006,0223:30:00,28 ,198.1537, 314.015,250.1819,32.98196