datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,02 0:30:00,28 ,       0,0.041021,0.003125,0.010425
sgpcmbeC1.c1,2001,02 1:30:00,28 ,       0,0.240177,0.013835,0.049075
sgpcmbeC1.c1,2001,02 2:30:00,28 ,       0,0.150696,0.011808, 0.03115
sgpcmbeC1.c1,2001,02 3:30:00,28 ,       0,0.114069,0.009488, 0.02994
sgpcmbeC1.c1,2001,02 4:30:00,28 ,       0, 0.14816,0.007255,0.029342
sgpcmbeC1.c1,2001,02 5:30:00,28 ,       0,0.045587,0.003337,0.010282
sgpcmbeC1.c1,2001,02 6:30:00,28 ,       0,0.018579,0.000734,0.003517
sgpcmbeC1.c1,2001,02 7:30:00,28 ,       0,9.614242,2.958808, 2.84376
sgpcmbeC1.c1,2001,02 8:30:00,27 ,0.298679,19.98605,7.838384,6.085926
sgpcmbeC1.c1,2001,02 9:30:00,28 ,0.475419,25.39145,8.449695,6.275643
sgpcmbeC1.c1,2001,0210:30:00,28 ,0.899827,40.79058,10.81887,9.718628
sgpcmbeC1.c1,2001,0211:30:00,27 ,1.434743,40.70428, 10.0244,9.295356
sgpcmbeC1.c1,2001,0212:30:00,28 ,0.692166,35.40992,10.08173,10.58319
sgpcmbeC1.c1,2001,0213:30:00,27 ,1.121638,30.13719,10.99397,9.782652
sgpcmbeC1.c1,2001,0214:30:00,27 ,0.990223,32.51052,11.04925,8.999972
sgpcmbeC1.c1,2001,0215:30:00,28 ,0.737116,30.31933,9.770932,7.622477
sgpcmbeC1.c1,2001,0216:30:00,28 ,0.509999,27.19208,9.442241,6.889825
sgpcmbeC1.c1,2001,0217:30:00,28 ,       0,15.25725,6.559797,4.987041
sgpcmbeC1.c1,2001,0218:30:00,28 ,       0,1.850285,0.332376,0.581861
sgpcmbeC1.c1,2001,0219:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0220:30:00,28 ,       0,0.011482,0.000459,0.002176
sgpcmbeC1.c1,2001,0221:30:00,28 ,       0,0.076519,0.003756,0.015143
sgpcmbeC1.c1,2001,0222:30:00,28 ,       0,0.076563,0.005604,0.016652
sgpcmbeC1.c1,2001,0223:30:00,28 ,       0,0.102433,0.007312,0.021815