datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,02 0:30:00,28 ,0.011979,0.364206,0.037836,0.068359
sgpcmbeC1.c1,2007,02 1:30:00,28 ,0.011645,0.143227,0.026371,0.025066
sgpcmbeC1.c1,2007,02 2:30:00,28 ,0.010599,0.204749,0.031385,0.038967
sgpcmbeC1.c1,2007,02 3:30:00,28 ,0.010834,0.141906,0.031338,0.030759
sgpcmbeC1.c1,2007,02 4:30:00,28 ,0.012647,0.299617,0.042226,0.060682
sgpcmbeC1.c1,2007,02 5:30:00,28 ,0.011624,0.533193, 0.04529,0.098089
sgpcmbeC1.c1,2007,02 6:30:00,28 , 0.01042,0.308122,0.036679,0.059688
sgpcmbeC1.c1,2007,02 7:30:00,28 ,0.012776,0.130565,0.031807,0.031335
sgpcmbeC1.c1,2007,02 8:30:00,28 , 0.01162,0.093914,0.025206,0.019024
sgpcmbeC1.c1,2007,02 9:30:00,28 ,0.011076,0.089655,0.024253, 0.01702
sgpcmbeC1.c1,2007,0210:30:00,28 , 0.01112,0.501232,0.041133,0.092474
sgpcmbeC1.c1,2007,0211:30:00,28 ,0.011689,0.453047,0.036019,0.082356
sgpcmbeC1.c1,2007,0212:30:00,28 ,0.012464,0.051536,0.021997,0.009394
sgpcmbeC1.c1,2007,0213:30:00,28 , 0.01234,0.053784,0.023908,0.010366
sgpcmbeC1.c1,2007,0214:30:00,28 ,0.010842,0.223875,0.035683,0.046866
sgpcmbeC1.c1,2007,0215:30:00,27 ,0.012074,0.312995,0.045075,0.067665
sgpcmbeC1.c1,2007,0216:30:00,28 ,0.012809,0.208976,0.033612,0.038563
sgpcmbeC1.c1,2007,0217:30:00,28 ,0.011753,0.215641,0.041402,0.050824
sgpcmbeC1.c1,2007,0218:30:00,28 ,0.012399,0.291667,0.038321,0.056417
sgpcmbeC1.c1,2007,0219:30:00,28 ,0.011314,0.189314,  0.0369,0.039313
sgpcmbeC1.c1,2007,0220:30:00,28 ,0.011341,0.063998,0.023949,0.014583
sgpcmbeC1.c1,2007,0221:30:00,28 ,0.013154,0.072694,0.027877,0.016262
sgpcmbeC1.c1,2007,0222:30:00,28 ,0.011279,0.175495,0.029984,0.032762
sgpcmbeC1.c1,2007,0223:30:00,28 ,0.009893,0.203444,0.035066,0.042115