datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,11 0:30:00,26 ,       0,0.036071,0.003701,0.010225
sgpcmbeC1.c1,2001,11 1:30:00,26 ,       0,0.107655,0.010311,0.028074
sgpcmbeC1.c1,2001,11 2:30:00,27 ,       0,0.048122,0.002914,0.009769
sgpcmbeC1.c1,2001,11 3:30:00,27 ,       0,0.054507,0.002757, 0.01103
sgpcmbeC1.c1,2001,11 4:30:00,28 ,       0,0.037221,0.001329,0.007034
sgpcmbeC1.c1,2001,11 5:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,11 6:30:00,30 ,       0,1.196947,0.173161,0.289655
sgpcmbeC1.c1,2001,11 7:30:00,30 ,0.199095,74.67714,27.59111,21.49579
sgpcmbeC1.c1,2001,11 8:30:00,30 ,1.307109,242.8311,135.0646,72.31997
sgpcmbeC1.c1,2001,11 9:30:00,30 ,20.18655, 428.327,262.5319,129.8898
sgpcmbeC1.c1,2001,1110:30:00,30 ,51.33603,542.4284,359.5975,153.5981
sgpcmbeC1.c1,2001,1111:30:00,30 , 67.2038,617.3153,424.4952,187.4678
sgpcmbeC1.c1,2001,1112:30:00,30 ,89.23176,645.9667,429.0371,181.4787
sgpcmbeC1.c1,2001,1113:30:00,30 ,53.49252,597.3508,372.1191,174.5558
sgpcmbeC1.c1,2001,1114:30:00,30 ,71.59545,473.8288,314.8698,139.1473
sgpcmbeC1.c1,2001,1115:30:00,30 ,55.56683,349.2539,207.4101,93.59195
sgpcmbeC1.c1,2001,1116:30:00,30 ,4.263197,141.6435,86.18453,38.98505
sgpcmbeC1.c1,2001,1117:30:00,30 ,0.277157,13.16087,5.478039,3.724578
sgpcmbeC1.c1,2001,1118:30:00,30 ,       0,0.712064,0.026163,0.129939
sgpcmbeC1.c1,2001,1119:30:00,30 ,       0,0.001123,0.000042,0.000206
sgpcmbeC1.c1,2001,1120:30:00,28 ,       0,0.036613,0.001346,0.006915
sgpcmbeC1.c1,2001,1121:30:00,28 ,       0,0.082177,  0.0036,0.015536
sgpcmbeC1.c1,2001,1122:30:00,26 ,       0,0.482733,0.023853,0.096279
sgpcmbeC1.c1,2001,1123:30:00,27 ,       0,0.059725,0.003759, 0.01179