datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,07 0:30:00,31 ,       0,0.331062,0.015604,0.064548
sgpcmbeC1.c1,2002,07 1:30:00,31 ,       0,0.205816,0.014011,0.042106
sgpcmbeC1.c1,2002,07 2:30:00,31 ,       0,0.297729,0.015907, 0.05863
sgpcmbeC1.c1,2002,07 3:30:00,31 ,       0,0.340973,0.017746,0.069268
sgpcmbeC1.c1,2002,07 4:30:00,31 ,       0,0.080914,0.004614,0.018024
sgpcmbeC1.c1,2002,07 5:30:00,31 ,0.002245,20.30267, 10.0226, 4.77874
sgpcmbeC1.c1,2002,07 6:30:00,31 , 4.53334,139.8601,106.1462,34.07478
sgpcmbeC1.c1,2002,07 7:30:00,31 ,40.50805, 331.374,253.8893,84.13517
sgpcmbeC1.c1,2002,07 8:30:00,31 ,42.20459,542.8986,420.6823,148.9425
sgpcmbeC1.c1,2002,07 9:30:00,31 ,172.0634,726.8518,582.8135,169.2032
sgpcmbeC1.c1,2002,0710:30:00,31 , 237.821,859.8774,703.4022,180.6713
sgpcmbeC1.c1,2002,0711:30:00,31 ,191.4773,959.3092,785.3842,183.3649
sgpcmbeC1.c1,2002,0712:30:00,31 ,141.8349,1008.356,815.3905,214.0735
sgpcmbeC1.c1,2002,0713:30:00,31 ,109.0947,950.7629,763.8411,209.8981
sgpcmbeC1.c1,2002,0714:30:00,31 ,167.0427,870.9418,686.6369,215.8612
sgpcmbeC1.c1,2002,0715:30:00,31 ,275.7882,758.1866,609.7153,141.7315
sgpcmbeC1.c1,2002,0716:30:00,31 ,194.5705, 609.462,472.0531,115.4277
sgpcmbeC1.c1,2002,0717:30:00,31 ,8.226153, 382.597,284.1004,85.11638
sgpcmbeC1.c1,2002,0718:30:00,31 ,0.561478,210.8273,133.7235,41.08707
sgpcmbeC1.c1,2002,0719:30:00,31 ,0.851803,39.48416,19.90628,8.455817
sgpcmbeC1.c1,2002,0720:30:00,31 ,       0,1.083903,0.197645,0.316953
sgpcmbeC1.c1,2002,0721:30:00,31 ,       0,0.441169,0.027586,0.087503
sgpcmbeC1.c1,2002,0722:30:00,31 ,       0,0.178182,0.005748,0.032002
sgpcmbeC1.c1,2002,0723:30:00,31 ,       0,       0,       0,       0