datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,11 0:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,11 1:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,11 2:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,11 3:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,11 4:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,11 5:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,11 6:30:00,29 ,       0,0.038837,  0.0026,0.008997
sgpcmbeC1.c1,1998,11 7:30:00,28 ,       0,15.88082,6.177267,4.550385
sgpcmbeC1.c1,1998,11 8:30:00,29 ,1.555284,59.12928,28.62598,17.70832
sgpcmbeC1.c1,1998,11 9:30:00,29 ,5.089504,83.75221,51.43203,29.61976
sgpcmbeC1.c1,1998,1110:30:00,29 ,4.280785,106.5579,67.36116,39.62674
sgpcmbeC1.c1,1998,1111:30:00,28 ,5.752844,120.0462,76.76562,44.90301
sgpcmbeC1.c1,1998,1112:30:00,29 ,6.258577, 121.827,76.67747,47.62952
sgpcmbeC1.c1,1998,1113:30:00,28 ,6.822761,115.2157,74.01288,42.62561
sgpcmbeC1.c1,1998,1114:30:00,29 ,7.819271,97.97822,60.86382,34.88851
sgpcmbeC1.c1,1998,1115:30:00,29 , 4.72274,70.78484,42.59651,24.58853
sgpcmbeC1.c1,1998,1116:30:00,28 ,2.135032,32.65831,17.01759, 10.6057
sgpcmbeC1.c1,1998,1117:30:00,30 ,       0,2.300166,0.523862,0.618196
sgpcmbeC1.c1,1998,1118:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,1119:30:00,29 ,       0,0.004188,0.000144,0.000778
sgpcmbeC1.c1,1998,1120:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,1121:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,1122:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,1123:30:00,28 ,       0, 0.01359,0.000485,0.002568