datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,02 0:30:00,26 ,0.012347,0.164693,0.026835,0.028903
sgpcmbeC1.c1,2004,02 1:30:00,26 , 0.01172,0.265567,0.032204,0.049937
sgpcmbeC1.c1,2004,02 2:30:00,26 ,0.013553,0.128579, 0.03126,0.030311
sgpcmbeC1.c1,2004,02 3:30:00,26 ,0.012173,0.062961,0.023805,0.013881
sgpcmbeC1.c1,2004,02 4:30:00,26 ,0.011072,0.081285,0.024787,0.017059
sgpcmbeC1.c1,2004,02 5:30:00,26 , 0.01235,0.127758,0.029447,0.025105
sgpcmbeC1.c1,2004,02 6:30:00,26 ,0.012556,0.081763,0.029834, 0.02168
sgpcmbeC1.c1,2004,02 7:30:00,26 ,0.012258,0.121679,0.032114,0.028292
sgpcmbeC1.c1,2004,02 8:30:00,26 ,0.012738,0.092943,0.031571,0.021277
sgpcmbeC1.c1,2004,02 9:30:00,26 ,0.012567,0.080885, 0.02668,0.017861
sgpcmbeC1.c1,2004,0210:30:00,27 ,0.012198,0.206634,0.038169,0.044018
sgpcmbeC1.c1,2004,0211:30:00,27 ,0.012563,0.131764,0.030338,0.026404
sgpcmbeC1.c1,2004,0212:30:00,27 , 0.01299,0.234415, 0.03517,0.043452
sgpcmbeC1.c1,2004,0213:30:00,27 , 0.01164,  0.1047,0.029295,0.024551
sgpcmbeC1.c1,2004,0214:30:00,27 ,0.011751,0.109458,0.024571,0.019948
sgpcmbeC1.c1,2004,0215:30:00,26 ,0.010584,0.241569,0.037524,0.046455
sgpcmbeC1.c1,2004,0216:30:00,26 ,0.012479, 0.10022,0.025726,0.017924
sgpcmbeC1.c1,2004,0217:30:00,27 ,0.010254,0.226857,0.034181,0.042381
sgpcmbeC1.c1,2004,0218:30:00,26 ,0.012534,0.171525,0.031771,0.034089
sgpcmbeC1.c1,2004,0219:30:00,26 ,0.012405,0.165047,0.033592,0.039547
sgpcmbeC1.c1,2004,0220:30:00,26 ,  0.0128,0.224899,0.042129,0.053974
sgpcmbeC1.c1,2004,0221:30:00,26 ,0.012038,0.096897,0.029925,0.024165
sgpcmbeC1.c1,2004,0222:30:00,26 , 0.01237,0.297196,0.034179,0.054804
sgpcmbeC1.c1,2004,0223:30:00,26 ,0.012367,0.129343,0.028915,0.025308