datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,06 0:30:00,26 ,0.021844,0.210675,0.068654,0.049341
sgpcmbeC1.c1,2007,06 1:30:00,22 ,0.017534,0.198862,0.066166, 0.04415
sgpcmbeC1.c1,2007,06 2:30:00,25 ,0.018186,0.254992,0.066276, 0.05749
sgpcmbeC1.c1,2007,06 3:30:00,25 ,0.018971,0.117682,0.060287,0.027966
sgpcmbeC1.c1,2007,06 4:30:00,27 ,0.019134,0.319258,0.057108,0.057621
sgpcmbeC1.c1,2007,06 5:30:00,26 ,0.019298,0.247328,0.068809,0.057091
sgpcmbeC1.c1,2007,06 6:30:00,25 ,0.017342,0.261644,0.062627,0.068038
sgpcmbeC1.c1,2007,06 7:30:00,27 ,0.015678,0.152862,0.043687,0.026584
sgpcmbeC1.c1,2007,06 8:30:00,27 , 0.02348,0.184292,0.053962,0.034567
sgpcmbeC1.c1,2007,06 9:30:00,27 ,0.018686, 0.21257,0.058017,0.040067
sgpcmbeC1.c1,2007,0610:30:00,26 ,0.020911,0.192688,0.057037,0.035784
sgpcmbeC1.c1,2007,0611:30:00,26 ,0.024433,0.139392,0.070954, 0.03329
sgpcmbeC1.c1,2007,0612:30:00,25 ,0.027256,0.201294,0.075279,0.043178
sgpcmbeC1.c1,2007,0613:30:00,25 ,0.021588,0.204866,0.079788,0.041824
sgpcmbeC1.c1,2007,0614:30:00,25 ,0.019915,0.204483,0.086221,0.043325
sgpcmbeC1.c1,2007,0615:30:00,25 ,0.029195,0.272699,0.082303,  0.0536
sgpcmbeC1.c1,2007,0616:30:00,27 ,0.020397,0.186989,0.092701,0.043472
sgpcmbeC1.c1,2007,0617:30:00,26 ,0.020755,0.321893,0.086174, 0.06423
sgpcmbeC1.c1,2007,0618:30:00,26 ,0.020043,0.207273,0.076996,0.049644
sgpcmbeC1.c1,2007,0619:30:00,27 ,0.023995,0.274481,0.081331,0.053522
sgpcmbeC1.c1,2007,0620:30:00,28 ,0.019075,0.329489,0.074283,0.063993
sgpcmbeC1.c1,2007,0621:30:00,26 ,0.020875, 0.23597,0.079049,0.062137
sgpcmbeC1.c1,2007,0622:30:00,25 , 0.02182,0.107437,0.055934,0.026385
sgpcmbeC1.c1,2007,0623:30:00,25 ,0.024559,0.186001,0.062519, 0.03949