datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,09 0:30:00,27 ,       0,0.097995,0.003629,0.018859
sgpcmbeC1.c1,1998,09 1:30:00,27 ,       0,0.017676,0.000655,0.003402
sgpcmbeC1.c1,1998,09 2:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,09 3:30:00,27 ,       0,0.012431, 0.00052,  0.0024
sgpcmbeC1.c1,1998,09 4:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,09 5:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,09 6:30:00,28 ,0.202203,14.15138,6.616817,4.208783
sgpcmbeC1.c1,1998,09 7:30:00,28 ,5.415175,60.77684,35.93931,16.26194
sgpcmbeC1.c1,1998,09 8:30:00,28 ,0.960395,104.2764,70.42445,27.56268
sgpcmbeC1.c1,1998,09 9:30:00,28 ,1.631644,138.1111,96.02323,35.61783
sgpcmbeC1.c1,1998,0910:30:00,28 ,13.04373,161.5121,112.5144,43.16189
sgpcmbeC1.c1,1998,0911:30:00,28 ,5.342466,174.7629,123.1054,44.39927
sgpcmbeC1.c1,1998,0912:30:00,28 ,22.34248,179.0302,129.6739,38.40961
sgpcmbeC1.c1,1998,0913:30:00,28 ,18.39838,173.0937,121.2609,37.88727
sgpcmbeC1.c1,1998,0914:30:00,28 ,16.49227,158.0155, 103.242,37.55783
sgpcmbeC1.c1,1998,0915:30:00,28 ,18.21219,132.6627,83.10626,32.11121
sgpcmbeC1.c1,1998,0916:30:00,28 ,13.57907,98.08019,62.43422,23.40326
sgpcmbeC1.c1,1998,0917:30:00,28 ,3.599108, 53.3227,29.92312,15.50407
sgpcmbeC1.c1,1998,0918:30:00,28 ,       0,14.93081,4.586206,4.582847
sgpcmbeC1.c1,1998,0919:30:00,28 ,       0,0.002502,0.000089,0.000473
sgpcmbeC1.c1,1998,0920:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0921:30:00,27 ,       0,0.009241,0.000342,0.001778
sgpcmbeC1.c1,1998,0922:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0923:30:00,26 ,       0,0.074739,0.003129,0.014663