datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,06 0:30:00,27 ,       0,0.329719,0.045917,0.105271
sgpcmbeC1.c1,2005,06 1:30:00,27 ,       0,0.338599,0.020059,0.070139
sgpcmbeC1.c1,2005,06 2:30:00,27 ,       0,0.252145,0.017956, 0.06475
sgpcmbeC1.c1,2005,06 3:30:00,27 ,       0,0.087956, 0.00583,0.021162
sgpcmbeC1.c1,2005,06 4:30:00,27 ,       0,0.000451,0.000017,0.000087
sgpcmbeC1.c1,2005,06 5:30:00,27 ,       0,15.05884, 5.72582,4.086584
sgpcmbeC1.c1,2005,06 6:30:00,27 ,0.000197,78.60533,33.78801,19.32311
sgpcmbeC1.c1,2005,06 7:30:00,27 ,0.310954,118.7447,51.59687,28.10737
sgpcmbeC1.c1,2005,06 8:30:00,28 ,29.35216,237.2635,77.03101,51.43802
sgpcmbeC1.c1,2005,06 9:30:00,28 ,29.60789,261.9734,89.20389,74.61917
sgpcmbeC1.c1,2005,0610:30:00,28 ,0.338143,307.7137,117.3206,95.48235
sgpcmbeC1.c1,2005,0611:30:00,28 ,11.54721,324.7215, 122.435,105.0679
sgpcmbeC1.c1,2005,0612:30:00,27 ,4.507493,334.5042,130.9368,121.3425
sgpcmbeC1.c1,2005,0613:30:00,27 ,13.18165, 338.306,145.3357,112.9383
sgpcmbeC1.c1,2005,0614:30:00,27 ,0.433339,301.0041,116.4728,92.96335
sgpcmbeC1.c1,2005,0615:30:00,27 ,0.940447,231.8634,89.47891, 70.2458
sgpcmbeC1.c1,2005,0616:30:00,27 , 0.00381,192.9189,74.44999,49.18235
sgpcmbeC1.c1,2005,0617:30:00,27 ,0.300145,118.0983, 50.4849,25.17755
sgpcmbeC1.c1,2005,0618:30:00,27 ,       0,51.62566,29.63121,16.44831
sgpcmbeC1.c1,2005,0619:30:00,27 ,       0,15.32023,7.238077,4.972223
sgpcmbeC1.c1,2005,0620:30:00,27 ,       0,0.048618,0.002286,0.009597
sgpcmbeC1.c1,2005,0621:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,0622:30:00,27 ,       0,0.239554,0.017015,0.061362
sgpcmbeC1.c1,2005,0623:30:00,27 ,       0, 0.35435,0.016997,0.070356