datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,06 0:30:00,25 , 0.01586,0.155731,0.047892, 0.03613
sgpcmbeC1.c1,2005,06 1:30:00,25 ,0.019212,0.179307,0.057774,0.053292
sgpcmbeC1.c1,2005,06 2:30:00,25 ,0.019549,0.192278,0.056283,0.041861
sgpcmbeC1.c1,2005,06 3:30:00,25 ,0.017369,0.433379,0.067717,0.089291
sgpcmbeC1.c1,2005,06 4:30:00,25 ,0.018184, 0.23376,0.065997,0.059796
sgpcmbeC1.c1,2005,06 5:30:00,25 ,0.015089,0.282908,0.058557,0.052045
sgpcmbeC1.c1,2005,06 6:30:00,24 ,0.019022, 0.21559,0.057987,0.055959
sgpcmbeC1.c1,2005,06 7:30:00,24 ,0.014352,0.135907,0.044056,0.033948
sgpcmbeC1.c1,2005,06 8:30:00,25 ,0.013433,0.209639,  0.0498,0.039778
sgpcmbeC1.c1,2005,06 9:30:00,27 , 0.01778,0.576369,0.070848,0.104017
sgpcmbeC1.c1,2005,0610:30:00,28 ,0.020538,0.220987,0.067663,0.040769
sgpcmbeC1.c1,2005,0611:30:00,28 ,0.017491,0.138669,0.074426,0.029763
sgpcmbeC1.c1,2005,0612:30:00,28 , 0.01769,0.173319,0.084152,0.040489
sgpcmbeC1.c1,2005,0613:30:00,28 ,0.033661,0.196298,0.087876,0.040789
sgpcmbeC1.c1,2005,0614:30:00,28 ,0.025121,0.214245,0.091576,0.043122
sgpcmbeC1.c1,2005,0615:30:00,28 ,0.034259,0.203194,0.089829,0.043222
sgpcmbeC1.c1,2005,0616:30:00,27 ,0.045188,0.293016,0.096566,0.061801
sgpcmbeC1.c1,2005,0617:30:00,27 ,0.033671,0.314363,0.093651,0.061136
sgpcmbeC1.c1,2005,0618:30:00,27 ,0.023504,0.323881,0.075403,0.059147
sgpcmbeC1.c1,2005,0619:30:00,27 ,0.021518,0.192412,0.061437,0.044009
sgpcmbeC1.c1,2005,0620:30:00,26 ,0.019991,0.386821,0.059119,0.071235
sgpcmbeC1.c1,2005,0621:30:00,26 ,0.017762,0.248116,0.056218, 0.04631
sgpcmbeC1.c1,2005,0622:30:00,26 ,0.018204,0.387397,0.075265,0.084295
sgpcmbeC1.c1,2005,0623:30:00,26 ,0.016761,0.284307, 0.06256,0.063337