datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,05 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,05 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,05 2:30:00,31 ,       0,0.099113,0.003197,0.017801
sgpcmbeC1.c1,1998,05 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,05 4:30:00,31 ,       0,0.663348,0.021859,0.119083
sgpcmbeC1.c1,1998,05 5:30:00,31 ,0.146805,8.098991,2.880322,2.115508
sgpcmbeC1.c1,1998,05 6:30:00,31 , 4.63056,48.62611,28.23513,11.44935
sgpcmbeC1.c1,1998,05 7:30:00,31 , 3.46177,92.86604,62.46174,25.91214
sgpcmbeC1.c1,1998,05 8:30:00,31 ,7.113062,127.7652,97.82809,30.94904
sgpcmbeC1.c1,1998,05 9:30:00,31 , 24.1214,153.3802,121.7415,32.26235
sgpcmbeC1.c1,1998,0510:30:00,31 ,46.52066,167.5353,139.7078,31.71549
sgpcmbeC1.c1,1998,0511:30:00,31 ,41.39215,177.8008,143.5685,38.30868
sgpcmbeC1.c1,1998,0512:30:00,31 ,52.30663,178.2704,146.4496,32.63293
sgpcmbeC1.c1,1998,0513:30:00,31 ,62.32522,183.8225,144.7229,27.87226
sgpcmbeC1.c1,1998,0514:30:00,31 ,55.73671,171.3713,138.3001,24.98829
sgpcmbeC1.c1,1998,0515:30:00,31 ,28.80217,150.0136,120.8638, 28.3187
sgpcmbeC1.c1,1998,0516:30:00,31 ,23.33321,126.4292,94.73449,28.96556
sgpcmbeC1.c1,1998,0517:30:00,31 ,4.647647,88.32684,64.90859,21.57497
sgpcmbeC1.c1,1998,0518:30:00,31 ,1.282192,40.88403,25.93137,11.06701
sgpcmbeC1.c1,1998,0519:30:00,31 ,       0, 6.85675,2.224551,  1.6827
sgpcmbeC1.c1,1998,0520:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0521:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0522:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0523:30:00,31 ,       0,       0,       0,       0