datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,11 0:30:00,28 ,       0,1.411424,0.050408,0.266734
sgpcmbeC1.c1,2006,11 1:30:00,27 ,       0,0.088106,0.003263,0.016956
sgpcmbeC1.c1,2006,11 2:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,11 3:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,11 4:30:00,28 ,       0,1.013801,0.036207, 0.19159
sgpcmbeC1.c1,2006,11 5:30:00,28 ,       0,1.104969,0.054699,0.221039
sgpcmbeC1.c1,2006,11 6:30:00,29 ,       0,1.510093,0.197106,0.457852
sgpcmbeC1.c1,2006,11 7:30:00,30 ,       0,51.79561,23.93883,14.87759
sgpcmbeC1.c1,2006,11 8:30:00,30 , 2.15425, 95.9316,47.61056,25.39928
sgpcmbeC1.c1,2006,11 9:30:00,30 ,19.08659, 109.746,49.22018,22.07871
sgpcmbeC1.c1,2006,1110:30:00,30 ,4.798599,141.5135,51.43098,36.87257
sgpcmbeC1.c1,2006,1111:30:00,30 ,8.444621,163.1849,58.89117,52.07035
sgpcmbeC1.c1,2006,1112:30:00,30 , 4.78684,149.2893,43.16745,47.47814
sgpcmbeC1.c1,2006,1113:30:00,30 ,15.37405,156.4588,52.33471,42.02537
sgpcmbeC1.c1,2006,1114:30:00,30 ,11.90524,161.2892,53.52369,37.12404
sgpcmbeC1.c1,2006,1115:30:00,30 ,6.604765,116.7942,52.50229,26.49059
sgpcmbeC1.c1,2006,1116:30:00,30 ,4.760449,73.70025,38.29742,18.08083
sgpcmbeC1.c1,2006,1117:30:00,30 ,       0,20.38305,7.635269,4.780399
sgpcmbeC1.c1,2006,1118:30:00,28 ,       0,1.451146,0.101391,0.372379
sgpcmbeC1.c1,2006,1119:30:00,29 ,       0,1.655535,0.084321,0.335854
sgpcmbeC1.c1,2006,1120:30:00,28 ,       0,0.834689, 0.02981,0.157741
sgpcmbeC1.c1,2006,1121:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,1122:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,1123:30:00,29 ,       0,1.077681,0.037161, 0.20012