datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,05 0:30:00,30 ,       0,515.8453,38.61727,104.1427
sgpcmbeC1.c1,2005,05 1:30:00,30 ,       0,2056.565, 110.363,385.1637
sgpcmbeC1.c1,2005,05 2:30:00,30 ,       0,3433.633,157.1904,633.6146
sgpcmbeC1.c1,2005,05 3:30:00,30 ,       0,2311.107,151.8477,493.1604
sgpcmbeC1.c1,2005,05 4:30:00,30 ,       0,2548.425,147.4199, 518.828
sgpcmbeC1.c1,2005,05 5:30:00,30 ,       0,3645.882,161.1424,661.6492
sgpcmbeC1.c1,2005,05 6:30:00,30 ,       0,1741.261, 135.291,385.5322
sgpcmbeC1.c1,2005,05 7:30:00,30 ,       0,1819.486,108.0575, 339.079
sgpcmbeC1.c1,2005,05 8:30:00,30 ,       0,2148.432,121.5999,409.2236
sgpcmbeC1.c1,2005,05 9:30:00,30 ,       0,3650.198, 158.682,663.0821
sgpcmbeC1.c1,2005,0510:30:00,30 ,       0,2815.949,150.7445,527.4905
sgpcmbeC1.c1,2005,0511:30:00,31 ,       0,2045.292,116.5609,388.5824
sgpcmbeC1.c1,2005,0512:30:00,31 ,       0,1617.277,115.2459,310.9317
sgpcmbeC1.c1,2005,0513:30:00,31 ,       0,481.0902,72.45437,124.5239
sgpcmbeC1.c1,2005,0514:30:00,31 ,       0,1307.036,94.06399,244.6315
sgpcmbeC1.c1,2005,0515:30:00,31 ,       0, 2255.82,138.7771,421.0132
sgpcmbeC1.c1,2005,0516:30:00,31 ,       0,3977.314,225.1091, 751.399
sgpcmbeC1.c1,2005,0517:30:00,31 ,       0,2839.105,199.9905,562.0175
sgpcmbeC1.c1,2005,0518:30:00,31 ,       0,1079.952,116.0667,285.6573
sgpcmbeC1.c1,2005,0519:30:00,30 ,       0,252.6313,32.72957,69.23994
sgpcmbeC1.c1,2005,0520:30:00,30 ,       0,222.6273,24.73493,  54.126
sgpcmbeC1.c1,2005,0521:30:00,30 ,       0,182.7752,18.48136,38.71539
sgpcmbeC1.c1,2005,0522:30:00,30 ,       0,829.0445,38.18309,150.9909
sgpcmbeC1.c1,2005,0523:30:00,30 ,       0,169.9723, 14.0808,31.87816