datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,04 0:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,04 1:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,04 2:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,04 3:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,04 4:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,04 5:30:00,29 ,       0,5.332832,0.706606,1.294045
sgpcmbeC1.c1,2006,04 6:30:00,30 ,1.118212,53.03737,26.33475,13.30859
sgpcmbeC1.c1,2006,04 7:30:00,30 , 2.98951,153.4592,73.33501,32.88509
sgpcmbeC1.c1,2006,04 8:30:00,30 ,5.104196,371.0462,126.2228,72.72718
sgpcmbeC1.c1,2006,04 9:30:00,30 ,8.403666,583.9373,174.4424,116.7794
sgpcmbeC1.c1,2006,0410:30:00,30 ,29.60173,631.2671,198.7067,132.2923
sgpcmbeC1.c1,2006,0411:30:00,30 ,23.52674, 662.195,218.8555, 150.807
sgpcmbeC1.c1,2006,0412:30:00,29 ,39.38549,505.7643,196.8229,116.5903
sgpcmbeC1.c1,2006,0413:30:00,30 ,75.62484,539.3303,213.2854,137.3848
sgpcmbeC1.c1,2006,0414:30:00,30 ,65.94798,433.3038,195.7712,118.9334
sgpcmbeC1.c1,2006,0415:30:00,30 ,13.30498,372.9468, 164.631, 95.9722
sgpcmbeC1.c1,2006,0416:30:00,30 ,7.465975,281.0983,135.2331,67.72955
sgpcmbeC1.c1,2006,0417:30:00,30 ,0.265223,240.4003, 92.4746,41.08521
sgpcmbeC1.c1,2006,0418:30:00,30 ,       0,98.13241,33.51913,17.37674
sgpcmbeC1.c1,2006,0419:30:00,29 ,       0,7.313685,0.644426,1.467035
sgpcmbeC1.c1,2006,0420:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0421:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0422:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0423:30:00,27 ,       0,       0,       0,       0