datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,09 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,09 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,09 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,09 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,09 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,09 5:30:00,30 ,       0,0.466796,0.022217,0.091534
sgpcmbeC1.c1,2001,09 6:30:00,30 ,5.023885,35.54426,16.33139,7.153059
sgpcmbeC1.c1,2001,09 7:30:00,30 ,8.996021,100.7595,63.16596,22.35728
sgpcmbeC1.c1,2001,09 8:30:00,29 ,5.320014,222.0958,108.6827,53.54265
sgpcmbeC1.c1,2001,09 9:30:00,30 ,14.99494,341.6142,157.3345,93.64831
sgpcmbeC1.c1,2001,0910:30:00,30 ,50.36369,406.8688,181.6961,116.4822
sgpcmbeC1.c1,2001,0911:30:00,30 ,67.28436,398.9393,177.0239,96.41908
sgpcmbeC1.c1,2001,0912:30:00,30 ,68.42435,473.9724,199.6763,115.4832
sgpcmbeC1.c1,2001,0913:30:00,30 ,68.39896,503.2819, 195.069, 124.662
sgpcmbeC1.c1,2001,0914:30:00,30 ,66.19205,405.7412,170.1058,110.0335
sgpcmbeC1.c1,2001,0915:30:00,30 ,47.73483,341.4733,132.1001,78.18164
sgpcmbeC1.c1,2001,0916:30:00,30 , 4.44234,202.7457,93.38485,46.58742
sgpcmbeC1.c1,2001,0917:30:00,30 ,7.433182, 134.515,58.14012,28.48391
sgpcmbeC1.c1,2001,0918:30:00,30 ,2.794113,36.37464,11.87363,8.890592
sgpcmbeC1.c1,2001,0919:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0920:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0921:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0922:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0923:30:00,30 ,       0,       0,       0,       0