datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,05 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,05 1:30:00,31 ,       0,0.180003,0.005807,0.032329
sgpcmbeC1.c1,2000,05 2:30:00,31 ,       0,0.224686, 0.01196,0.043924
sgpcmbeC1.c1,2000,05 3:30:00,31 ,       0,0.073756,0.002379,0.013247
sgpcmbeC1.c1,2000,05 4:30:00,31 ,       0,0.111152, 0.00617,0.024218
sgpcmbeC1.c1,2000,05 5:30:00,30 ,       0,16.82126,7.512605,5.740587
sgpcmbeC1.c1,2000,05 6:30:00,22 ,       0,43.45617,14.50536,10.17722
sgpcmbeC1.c1,2000,05 7:30:00,21 ,2.642126,86.94865,20.57775,22.93137
sgpcmbeC1.c1,2000,05 8:30:00,21 ,  1.3204,93.50911,19.65867,25.21887
sgpcmbeC1.c1,2000,05 9:30:00,21 ,1.085852,130.5848,27.17685, 32.0073
sgpcmbeC1.c1,2000,0510:30:00,21 ,0.741479,139.8065,36.16268,41.30004
sgpcmbeC1.c1,2000,0511:30:00,22 ,0.710364,133.8509,38.20364,36.15821
sgpcmbeC1.c1,2000,0512:30:00,22 ,0.795898,110.8967,38.49271,34.86168
sgpcmbeC1.c1,2000,0513:30:00,22 ,1.410365, 144.132,46.07416,40.80428
sgpcmbeC1.c1,2000,0514:30:00,22 ,1.083231,99.05496,32.65892,  31.578
sgpcmbeC1.c1,2000,0515:30:00,22 ,1.326444,123.0398,30.14406,33.05299
sgpcmbeC1.c1,2000,0516:30:00,22 ,2.067167, 98.4441,26.93405, 28.1814
sgpcmbeC1.c1,2000,0517:30:00,22 ,4.218643,41.41208,18.81283,12.60133
sgpcmbeC1.c1,2000,0518:30:00,23 ,       0,35.28019,16.73572,9.298544
sgpcmbeC1.c1,2000,0519:30:00,30 ,       0, 22.8421,8.154353,6.056886
sgpcmbeC1.c1,2000,0520:30:00,30 ,       0, 0.16087,0.010247,0.039042
sgpcmbeC1.c1,2000,0521:30:00,30 ,       0,0.122868,0.006787,0.026415
sgpcmbeC1.c1,2000,0522:30:00,30 ,       0,0.123882,0.007887,0.030049
sgpcmbeC1.c1,2000,0523:30:00,30 ,       0,0.091467,0.003821,0.017085