datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,12 0:30:00,29 ,0.382125,3.450152,1.293158,0.814853
sgpcmbeC1.c1,2007,12 1:30:00,29 ,0.369834,3.426364,1.301141,0.820082
sgpcmbeC1.c1,2007,12 2:30:00,29 ,0.357559,3.474062,1.302304,0.822146
sgpcmbeC1.c1,2007,12 3:30:00,29 ,0.375525,3.722773,1.321075,0.834133
sgpcmbeC1.c1,2007,12 4:30:00,29 ,0.351802,3.843699,1.325592,0.839717
sgpcmbeC1.c1,2007,12 5:30:00,29 ,0.340433, 3.86596,1.326054,0.824402
sgpcmbeC1.c1,2007,12 6:30:00,29 ,0.354799, 3.88048,1.316838,0.813558
sgpcmbeC1.c1,2007,12 7:30:00,29 ,0.368574,3.881304,1.332491,0.846074
sgpcmbeC1.c1,2007,12 8:30:00,29 ,0.383022,3.796437,1.364999,0.906131
sgpcmbeC1.c1,2007,12 9:30:00,30 ,0.393585,3.727648,1.308493,0.836369
sgpcmbeC1.c1,2007,1210:30:00,30 ,0.413252,3.939131,1.288506, 0.83979
sgpcmbeC1.c1,2007,1211:30:00,30 ,0.420165,4.026579,1.321646,0.920472
sgpcmbeC1.c1,2007,1212:30:00,30 ,0.392462,  3.9657,1.291613,0.874122
sgpcmbeC1.c1,2007,1213:30:00,30 ,0.393864,3.713332,1.257318,0.821374
sgpcmbeC1.c1,2007,1214:30:00,30 ,0.409911,3.443252,1.212173, 0.79197
sgpcmbeC1.c1,2007,1215:30:00,30 ,0.437785, 3.27642, 1.19136,0.778679
sgpcmbeC1.c1,2007,1216:30:00,29 ,0.463513,3.336258,1.202274,0.785256
sgpcmbeC1.c1,2007,1217:30:00,29 ,0.467733,3.330924,1.180737,0.731624
sgpcmbeC1.c1,2007,1218:30:00,28 ,0.424719,3.316256,1.183072,0.694476
sgpcmbeC1.c1,2007,1219:30:00,28 ,0.405756,3.208342, 1.16286,0.668192
sgpcmbeC1.c1,2007,1220:30:00,28 ,0.379335,3.254786,1.168118,0.686823
sgpcmbeC1.c1,2007,1221:30:00,28 ,0.377093,3.362077,1.192117,0.705966
sgpcmbeC1.c1,2007,1222:30:00,28 ,0.388855,3.428317,1.202435,0.711408
sgpcmbeC1.c1,2007,1223:30:00,28 ,0.388688,3.296551,1.217108,0.724164