datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,04 0:30:00,30 ,       0,2.669971,0.983476,0.834629
sgpcmbeC1.c1,2001,04 1:30:00,29 ,       0,3.010351,1.043215, 0.85218
sgpcmbeC1.c1,2001,04 2:30:00,30 ,       0, 2.91526,0.926098,0.808956
sgpcmbeC1.c1,2001,04 3:30:00,30 ,       0,2.781415,0.849807,0.835555
sgpcmbeC1.c1,2001,04 4:30:00,30 ,       0,2.511824,0.831924, 0.82971
sgpcmbeC1.c1,2001,04 5:30:00,30 ,       0,1.698381,0.682646,0.579122
sgpcmbeC1.c1,2001,04 6:30:00,30 ,0.162266,58.41611,16.53614,18.20677
sgpcmbeC1.c1,2001,04 7:30:00,30 ,0.041572,227.4189,93.24481,91.35106
sgpcmbeC1.c1,2001,04 8:30:00,30 ,0.031807,451.2181,202.7781,179.0713
sgpcmbeC1.c1,2001,04 9:30:00,30 ,0.198563,629.7614,297.6018,259.0062
sgpcmbeC1.c1,2001,0410:30:00,30 ,0.269775,775.5452,  347.72, 322.792
sgpcmbeC1.c1,2001,0411:30:00,30 ,0.314713, 868.732,380.0414,348.4551
sgpcmbeC1.c1,2001,0412:30:00,30 ,0.518204,897.9604,370.5417,359.2314
sgpcmbeC1.c1,2001,0413:30:00,30 ,0.013168,   859.4,350.7418,332.1748
sgpcmbeC1.c1,2001,0414:30:00,30 ,0.313171,765.6044,352.1399, 281.344
sgpcmbeC1.c1,2001,0415:30:00,30 ,0.294678,615.1375,318.8386,221.1485
sgpcmbeC1.c1,2001,0416:30:00,30 ,0.050507,426.8895,200.3338,162.1324
sgpcmbeC1.c1,2001,0417:30:00,30 ,       0,221.0167, 99.7798,83.20634
sgpcmbeC1.c1,2001,0418:30:00,30 ,0.071772,50.40272, 18.0703,17.12752
sgpcmbeC1.c1,2001,0419:30:00,29 ,       0,2.239455,0.824332,0.727384
sgpcmbeC1.c1,2001,0420:30:00,28 ,       0,2.683284,0.871917,0.897332
sgpcmbeC1.c1,2001,0421:30:00,29 ,       0,2.389596,0.788828,0.814588
sgpcmbeC1.c1,2001,0422:30:00,30 ,       0,3.038381,0.849479,0.886738
sgpcmbeC1.c1,2001,0423:30:00,30 ,       0, 3.05339,0.883313,0.880815