datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,02 0:30:00,17 ,       0,       1,0.254085,0.393954
sgpcmbeC1.c1,2002,02 1:30:00,17 ,       0,       1,0.289216,0.417708
sgpcmbeC1.c1,2002,02 2:30:00,17 ,       0,       1,0.271895,0.406119
sgpcmbeC1.c1,2002,02 3:30:00,17 ,       0,       1, 0.30049,0.426598
sgpcmbeC1.c1,2002,02 4:30:00,17 ,       0,       1,0.317974,  0.4059
sgpcmbeC1.c1,2002,02 5:30:00,17 ,       0,       1,0.303105,0.425501
sgpcmbeC1.c1,2002,02 6:30:00,17 ,       0,       1,0.280556,0.413857
sgpcmbeC1.c1,2002,02 7:30:00,17 ,       0,       1,0.383007,0.470237
sgpcmbeC1.c1,2002,02 8:30:00,17 ,       0,       1,0.378268,0.444543
sgpcmbeC1.c1,2002,02 9:30:00,18 ,       0,       1,0.360185,0.441332
sgpcmbeC1.c1,2002,0210:30:00,18 ,       0,       1,0.339506,0.385898
sgpcmbeC1.c1,2002,0211:30:00,18 ,       0,0.961111,0.308179,0.356333
sgpcmbeC1.c1,2002,0212:30:00,18 ,       0,       1,0.384877,0.415199
sgpcmbeC1.c1,2002,0213:30:00,18 ,       0,       1,0.313735,0.400584
sgpcmbeC1.c1,2002,0214:30:00,18 ,       0,       1,0.255247, 0.37265
sgpcmbeC1.c1,2002,0215:30:00,18 ,       0,       1, 0.31142,0.373595
sgpcmbeC1.c1,2002,0216:30:00,18 ,       0,       1,0.278549,0.415113
sgpcmbeC1.c1,2002,0217:30:00,18 ,       0,       1,0.311883,0.382604
sgpcmbeC1.c1,2002,0218:30:00,18 ,       0,0.977778,0.259568,0.406064
sgpcmbeC1.c1,2002,0219:30:00,18 ,       0,0.997222,0.334877,0.394848
sgpcmbeC1.c1,2002,0220:30:00,18 ,       0,0.983333,0.206636,0.337448
sgpcmbeC1.c1,2002,0221:30:00,18 ,       0,       1, 0.23287,0.372934
sgpcmbeC1.c1,2002,0222:30:00,18 ,       0,       1,0.214352,0.360664
sgpcmbeC1.c1,2002,0223:30:00,18 ,       0,       1,0.216512,0.302298