datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,04 0:30:00,30 ,       0,0.312726,0.010797,0.057062
sgpcmbeC1.c1,2002,04 1:30:00,28 ,       0,0.387261,0.014945,0.073199
sgpcmbeC1.c1,2002,04 2:30:00,28 ,       0,0.020202,0.000925,0.003928
sgpcmbeC1.c1,2002,04 3:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,04 4:30:00,29 ,       0,0.147677,0.005092,0.027423
sgpcmbeC1.c1,2002,04 5:30:00,30 ,       0,1.158359, 0.16994,0.221528
sgpcmbeC1.c1,2002,04 6:30:00,29 ,0.025007,79.90976,15.80753,22.39507
sgpcmbeC1.c1,2002,04 7:30:00,29 ,       0,271.8958,79.19352,90.94196
sgpcmbeC1.c1,2002,04 8:30:00,29 ,0.002411,474.5797,175.2976,181.6531
sgpcmbeC1.c1,2002,04 9:30:00,29 ,0.010719,653.0464,233.3293,263.4523
sgpcmbeC1.c1,2002,0410:30:00,29 ,0.040543,794.9531, 317.822,334.5901
sgpcmbeC1.c1,2002,0411:30:00,29 ,0.019363, 883.287,378.6742,363.7756
sgpcmbeC1.c1,2002,0412:30:00,29 ,0.059967,910.4817,437.7436,378.4005
sgpcmbeC1.c1,2002,0413:30:00,28 ,0.052101,875.4574,402.3728,368.3942
sgpcmbeC1.c1,2002,0414:30:00,28 ,       0,773.9489,373.7899,322.9474
sgpcmbeC1.c1,2002,0415:30:00,28 ,0.164368,621.8801,313.8754,253.9938
sgpcmbeC1.c1,2002,0416:30:00,28 ,0.001465,431.7823,204.8537,178.5493
sgpcmbeC1.c1,2002,0417:30:00,28 ,       0,  228.31,89.93591,83.76188
sgpcmbeC1.c1,2002,0418:00:00,17 , 0.15686,867.7468, 198.796,296.6258
sgpcmbeC1.c1,2002,0418:30:00,30 ,0.087759,55.96633,19.04108,16.97822
sgpcmbeC1.c1,2002,0419:30:00,30 ,       0,1.785225,0.392917,0.495642
sgpcmbeC1.c1,2002,0420:30:00,30 ,       0, 0.11529,0.003843,0.021049
sgpcmbeC1.c1,2002,0421:30:00,30 ,       0,0.016916,0.000596,0.003085
sgpcmbeC1.c1,2002,0422:30:00,29 ,       0,0.378349, 0.02371, 0.08375
sgpcmbeC1.c1,2002,0423:30:00,29 ,       0,0.248014,0.009371,0.046082