datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,02 0:30:00,22 ,0.010394,0.147671,0.036811,0.033589
sgpcmbeC1.c1,2001,02 1:30:00,19 ,0.011667,0.145234,0.032596,0.034837
sgpcmbeC1.c1,2001,02 2:30:00,20 ,0.010692,0.209311,0.043903, 0.05853
sgpcmbeC1.c1,2001,02 3:30:00,19 ,0.012038, 0.14323,0.034344, 0.03468
sgpcmbeC1.c1,2001,02 4:30:00,19 ,0.011188,0.182386,0.044354,0.043457
sgpcmbeC1.c1,2001,02 5:30:00,19 ,0.012259,0.149042,0.043808,0.039165
sgpcmbeC1.c1,2001,02 6:30:00,19 ,0.011867,0.226268,0.042057, 0.05011
sgpcmbeC1.c1,2001,02 7:30:00,19 ,0.010677,0.199108,0.038486,0.046033
sgpcmbeC1.c1,2001,02 8:30:00,18 ,0.011511,0.166825,0.032326,0.035151
sgpcmbeC1.c1,2001,02 9:30:00,21 ,0.010283, 0.33896, 0.03886,0.069826
sgpcmbeC1.c1,2001,0210:30:00,21 ,0.009367,0.081784,0.027055,0.019271
sgpcmbeC1.c1,2001,0211:30:00,22 ,0.012981,0.319334,0.038243,0.066725
sgpcmbeC1.c1,2001,0212:30:00,22 ,0.009627,0.287715,0.039162,0.059579
sgpcmbeC1.c1,2001,0213:30:00,21 ,0.012548,0.118844, 0.03045,0.024959
sgpcmbeC1.c1,2001,0214:30:00,22 ,0.013735, 0.06984,0.027366,0.016802
sgpcmbeC1.c1,2001,0215:30:00,23 ,0.011591,0.103247,0.037342,0.024964
sgpcmbeC1.c1,2001,0216:30:00,24 ,0.010291,0.277579,0.049193,0.069923
sgpcmbeC1.c1,2001,0217:30:00,24 ,0.010761,0.212078,0.039974,  0.0462
sgpcmbeC1.c1,2001,0218:30:00,21 ,0.011105,0.247738, 0.03462,0.050378
sgpcmbeC1.c1,2001,0219:30:00,21 ,0.011659,0.059301, 0.02559,0.014344
sgpcmbeC1.c1,2001,0220:30:00,21 ,0.011632, 0.08886,0.029969,0.019895
sgpcmbeC1.c1,2001,0221:30:00,21 ,0.011449,0.067323,0.027188,0.015558
sgpcmbeC1.c1,2001,0222:30:00,22 ,0.010133,  0.1024,0.031653,0.026007
sgpcmbeC1.c1,2001,0223:30:00,21 , 0.01119, 0.18775,0.035141,0.040473