datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,03 0:30:00,19 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,03 1:30:00,19 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,03 2:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,03 3:30:00,22 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,03 4:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,03 5:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,03 6:30:00,27 ,       0,12.55405,1.631947,3.276567
sgpcmbeC1.c1,2002,03 7:30:00,27 ,0.003988, 140.138, 41.4279,46.89622
sgpcmbeC1.c1,2002,03 8:30:00,26 ,0.069973,328.0194,135.9517, 115.837
sgpcmbeC1.c1,2002,03 9:30:00,26 ,0.080177,511.0203,250.4294,193.1748
sgpcmbeC1.c1,2002,0310:30:00,27 ,0.052307,665.6614,350.1471,263.3498
sgpcmbeC1.c1,2002,0311:30:00,27 ,0.029816,761.0196,391.5123,311.6678
sgpcmbeC1.c1,2002,0312:30:00,26 ,0.105682,805.4525,470.0139,317.9651
sgpcmbeC1.c1,2002,0313:30:00,25 ,       0,776.3712,  472.66,317.4648
sgpcmbeC1.c1,2002,0314:30:00,25 ,       0,676.0792,398.1927,279.3493
sgpcmbeC1.c1,2002,0315:30:00,26 ,       0,542.3374, 283.441,212.8789
sgpcmbeC1.c1,2002,0316:30:00,27 ,       0,360.2439,162.7914,146.4453
sgpcmbeC1.c1,2002,0317:30:00,27 ,       0,164.7915,65.36683, 61.8978
sgpcmbeC1.c1,2002,0318:30:00,27 ,       0,20.76422,5.141699,6.932556
sgpcmbeC1.c1,2002,0319:30:00,27 ,       0,0.311581,0.026824,0.080207
sgpcmbeC1.c1,2002,0320:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0321:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0322:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0323:30:00,20 ,       0,       0,       0,       0