datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,03 0:30:00,19 ,       0,0.043604,0.002486,0.009992
sgpcmbeC1.c1,2002,03 1:30:00,19 ,       0,0.026019,0.001369,0.005969
sgpcmbeC1.c1,2002,03 2:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,03 3:30:00,22 ,       0,0.003485,0.000158,0.000743
sgpcmbeC1.c1,2002,03 4:30:00,21 ,       0,0.158073,0.007527,0.034494
sgpcmbeC1.c1,2002,03 5:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,03 6:30:00,27 ,0.055706,12.76841,1.880295,3.261169
sgpcmbeC1.c1,2002,03 7:30:00,27 ,0.003988, 140.138,41.45826, 46.8685
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 ,0.272157,20.76422,5.436162,6.827397
sgpcmbeC1.c1,2002,0319:30:00,27 ,       0,1.765754,0.270868,0.483634
sgpcmbeC1.c1,2002,0320:30:00,26 ,       0,0.539362,0.104778,0.184021
sgpcmbeC1.c1,2002,0321:30:00,24 ,       0,0.755786,0.054522,0.167253
sgpcmbeC1.c1,2002,0322:30:00,23 ,       0, 0.15211,0.020525,0.045735
sgpcmbeC1.c1,2002,0323:30:00,20 ,       0, 0.15742, 0.01412,0.039965