datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,02 0:30:00,15 ,0.011052, 0.06075,0.019616,0.015491
sgpcmbeC1.c1,2002,02 1:30:00,15 , 0.01192,  0.0747,0.024659,0.016745
sgpcmbeC1.c1,2002,02 2:30:00,15 ,0.011116,0.051938, 0.02058,0.010852
sgpcmbeC1.c1,2002,02 3:30:00,15 ,0.009578,0.040554,0.020183,0.009249
sgpcmbeC1.c1,2002,02 4:30:00,15 ,0.010239,0.041445, 0.02087,0.010228
sgpcmbeC1.c1,2002,02 5:30:00,15 ,0.011179,0.045777, 0.01832, 0.00956
sgpcmbeC1.c1,2002,02 6:30:00,15 ,0.010885,0.069448,0.023078,0.016919
sgpcmbeC1.c1,2002,02 7:30:00,15 ,0.010899,0.058974,0.020516,0.011965
sgpcmbeC1.c1,2002,02 8:30:00,15 ,0.010251,0.056333,0.021212,0.010788
sgpcmbeC1.c1,2002,02 9:30:00,17 ,0.011402,0.062049,0.021413,0.013716
sgpcmbeC1.c1,2002,0210:30:00,18 ,0.010376,0.059186,0.023703,0.012444
sgpcmbeC1.c1,2002,0211:30:00,17 ,0.011858,0.158008,0.028913,0.035045
sgpcmbeC1.c1,2002,0212:30:00,17 ,0.013881,0.034212, 0.02222,0.006687
sgpcmbeC1.c1,2002,0213:30:00,17 , 0.01214,0.089127, 0.02603,0.019318
sgpcmbeC1.c1,2002,0214:30:00,17 ,0.013138, 0.04014,0.023503,0.008426
sgpcmbeC1.c1,2002,0215:30:00,15 ,0.011713, 0.11353,0.029815,0.026254
sgpcmbeC1.c1,2002,0216:30:00,15 , 0.01119, 0.05285,0.025813,0.013144
sgpcmbeC1.c1,2002,0217:30:00,15 , 0.01147,0.046397,0.021759,0.010067
sgpcmbeC1.c1,2002,0218:30:00,15 ,0.010718,0.037794,0.021141,0.007792
sgpcmbeC1.c1,2002,0219:30:00,15 ,0.011422,0.066052,0.021872,0.015367
sgpcmbeC1.c1,2002,0220:30:00,15 ,0.013045,0.538964,0.055967,0.134046
sgpcmbeC1.c1,2002,0221:30:00,15 ,0.011315,0.370277, 0.04302,0.090679
sgpcmbeC1.c1,2002,0222:30:00,15 ,0.011711,0.128923, 0.02423,0.029282
sgpcmbeC1.c1,2002,0223:30:00,15 ,0.010755,0.081966,0.021305,0.018016