datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,08 0:30:00,29 ,       0,277.8202,22.86825,55.34848
sgpcmbeC1.c1,2004,08 1:30:00,29 ,       0, 491.867,35.92369,94.25464
sgpcmbeC1.c1,2004,08 2:30:00,29 ,       0,156.0571,29.66113,  47.601
sgpcmbeC1.c1,2004,08 3:30:00,27 ,       0,192.7694,25.62382,45.34673
sgpcmbeC1.c1,2004,08 4:30:00,28 ,       0, 350.369,35.43091,72.89085
sgpcmbeC1.c1,2004,08 5:30:00,27 ,       0,50.58735,15.46718,18.00017
sgpcmbeC1.c1,2004,08 6:30:00,28 ,       0,106.9705,28.16737,36.49661
sgpcmbeC1.c1,2004,08 7:30:00,30 ,       0,150.0552,27.77742,43.36025
sgpcmbeC1.c1,2004,08 8:30:00,30 ,       0,176.8626,27.65848,46.23743
sgpcmbeC1.c1,2004,08 9:30:00,30 ,       0,173.7823,29.54085,52.00202
sgpcmbeC1.c1,2004,0810:30:00,30 ,       0,152.9774,27.99612,50.28604
sgpcmbeC1.c1,2004,0811:30:00,29 ,       0,191.4916,17.22242,39.82536
sgpcmbeC1.c1,2004,0812:30:00,30 ,       0, 210.263,16.50597,39.53206
sgpcmbeC1.c1,2004,0813:30:00,31 ,       0,197.6817,17.15732,38.13354
sgpcmbeC1.c1,2004,0814:30:00,30 ,       0,176.7242,14.29523,32.99061
sgpcmbeC1.c1,2004,0815:30:00,30 ,       0, 158.304,13.52353,30.09025
sgpcmbeC1.c1,2004,0816:30:00,30 ,       0,49.27853,8.764968,12.33414
sgpcmbeC1.c1,2004,0817:30:00,30 ,       0,41.73699,6.445319, 10.6484
sgpcmbeC1.c1,2004,0818:30:00,29 ,       0,34.84474,4.665925, 7.64002
sgpcmbeC1.c1,2004,0819:30:00,29 ,       0, 306.372,13.76114,56.54924
sgpcmbeC1.c1,2004,0820:30:00,28 ,       0, 50.2404,4.922806,10.32686
sgpcmbeC1.c1,2004,0821:30:00,29 ,       0,168.6609,9.681943,31.69967
sgpcmbeC1.c1,2004,0822:30:00,29 ,       0, 228.632,18.16776,45.83531
sgpcmbeC1.c1,2004,0823:30:00,29 ,       0,144.8737,13.76845,29.20554