datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,08 0:30:00,31 ,       0, 4.72781,0.263865, 1.03457
sgpcmbeC1.c1,2001,08 1:30:00,31 ,       0,4.647957,0.288811,1.060496
sgpcmbeC1.c1,2001,08 2:30:00,31 ,       0, 4.31904,0.221395,0.887086
sgpcmbeC1.c1,2001,08 3:30:00,30 ,       0, 5.10214,0.245814, 1.00657
sgpcmbeC1.c1,2001,08 4:30:00,31 ,       0,6.329673, 0.35477,1.389907
sgpcmbeC1.c1,2001,08 5:30:00,31 ,       0,6.676748,1.385592,1.585475
sgpcmbeC1.c1,2001,08 6:30:00,31 ,23.37337,106.4317,68.49821,24.32749
sgpcmbeC1.c1,2001,08 7:30:00,31 ,107.0014,296.9191,228.6167, 53.6196
sgpcmbeC1.c1,2001,08 8:30:00,31 ,158.5914,494.1912,418.4824,92.75239
sgpcmbeC1.c1,2001,08 9:30:00,31 ,284.5807,716.5504,601.9117,103.9818
sgpcmbeC1.c1,2001,0810:30:00,31 ,303.6832,827.8928,711.6453,137.4685
sgpcmbeC1.c1,2001,0811:30:00,31 ,118.2205,920.6299,750.9455, 215.415
sgpcmbeC1.c1,2001,0812:30:00,31 ,261.3498,951.2864,809.7528,163.2892
sgpcmbeC1.c1,2001,0813:30:00,31 ,432.5352,913.6635,807.3658,117.1873
sgpcmbeC1.c1,2001,0814:30:00,31 ,389.3595,825.7681,706.7685, 128.269
sgpcmbeC1.c1,2001,0815:30:00,31 ,177.4937,696.7873,559.4999,133.7538
sgpcmbeC1.c1,2001,0816:30:00,31 ,16.09303,554.1144,411.8439, 125.566
sgpcmbeC1.c1,2001,0817:30:00,31 ,3.409382,336.1805,235.2502,75.20412
sgpcmbeC1.c1,2001,0818:30:00,31 ,       0,153.7776,83.26962,37.57078
sgpcmbeC1.c1,2001,0819:30:00,31 ,       0,17.88448, 4.76525,4.479302
sgpcmbeC1.c1,2001,0820:30:00,31 ,       0,2.168917,0.092277,0.392563
sgpcmbeC1.c1,2001,0821:30:00,31 ,       0,3.896177,0.127316, 0.69953
sgpcmbeC1.c1,2001,0822:30:00,31 ,       0,3.962327,0.127817,0.711655
sgpcmbeC1.c1,2001,0823:30:00,31 ,       0,1.977594,0.063793,0.355186