datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,03 0:30:00,31 ,       0,0.726797,0.144154,0.238718
sgpcmbeC1.c1,2005,03 1:30:00,31 ,       0,0.736411, 0.08884,0.177133
sgpcmbeC1.c1,2005,03 2:30:00,31 ,       0,  0.6184,0.091356,0.204887
sgpcmbeC1.c1,2005,03 3:30:00,31 ,       0,0.491072,0.061555,0.146447
sgpcmbeC1.c1,2005,03 4:30:00,31 ,       0,0.199222, 0.00893, 0.03669
sgpcmbeC1.c1,2005,03 5:30:00,31 ,       0,0.120999,0.009953,0.029416
sgpcmbeC1.c1,2005,03 6:30:00,31 ,       0,19.03583,2.240799,5.023385
sgpcmbeC1.c1,2005,03 7:30:00,31 ,0.008707,57.93554,24.38678,21.21871
sgpcmbeC1.c1,2005,03 8:30:00,30 ,       0,128.3005, 41.4737,37.32282
sgpcmbeC1.c1,2005,03 9:30:00,30 , 0.06969,199.4836,47.14981,42.80224
sgpcmbeC1.c1,2005,0310:30:00,30 ,0.336326,295.2628,63.12721,73.85907
sgpcmbeC1.c1,2005,0311:30:00,30 ,0.645957,331.6149,75.13672,89.96134
sgpcmbeC1.c1,2005,0312:30:00,30 ,0.047937,292.3466,84.05276, 94.8572
sgpcmbeC1.c1,2005,0313:30:00,30 ,0.178472,298.6362,93.33023,90.89487
sgpcmbeC1.c1,2005,0314:30:00,31 , 0.20676,268.4568,85.17144,86.39642
sgpcmbeC1.c1,2005,0315:30:00,31 ,0.068191,240.7714,71.28226,65.76461
sgpcmbeC1.c1,2005,0316:30:00,31 ,0.047597,149.8888,47.71931,37.77416
sgpcmbeC1.c1,2005,0317:30:00,31 ,       0,103.6407,30.34083,26.52768
sgpcmbeC1.c1,2005,0318:30:00,31 ,       0,22.41555,5.681415,6.711898
sgpcmbeC1.c1,2005,0319:30:00,31 ,       0,0.939796,0.080055,0.177346
sgpcmbeC1.c1,2005,0320:30:00,31 ,       0,0.481945,0.078405,0.127346
sgpcmbeC1.c1,2005,0321:30:00,31 ,       0,0.427888,0.080666, 0.13956
sgpcmbeC1.c1,2005,0322:30:00,31 ,       0,0.539078,0.092628,0.167466
sgpcmbeC1.c1,2005,0323:30:00,31 ,       0,0.675625,0.130739,0.207014