datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,05 0:30:00,31 ,       0,1.714012,0.260532,0.549223
sgpcmbeC1.c1,2005,05 1:30:00,31 ,       0,1.612786,0.175184,0.404205
sgpcmbeC1.c1,2005,05 2:30:00,31 ,       0,1.612139,0.174049,0.423582
sgpcmbeC1.c1,2005,05 3:30:00,31 ,       0,1.554107,0.144983,0.404991
sgpcmbeC1.c1,2005,05 4:30:00,31 ,       0,1.577037,0.175015, 0.46475
sgpcmbeC1.c1,2005,05 5:30:00,31 ,2.066755,28.31692, 13.0975,7.863693
sgpcmbeC1.c1,2005,05 6:30:00,31 ,4.415504,83.49761,41.62814,22.50689
sgpcmbeC1.c1,2005,05 7:30:00,31 ,10.38567,122.7323,61.46241,29.08435
sgpcmbeC1.c1,2005,05 8:30:00,31 ,9.821972,160.1129,66.05872,33.34182
sgpcmbeC1.c1,2005,05 9:30:00,31 ,11.33247,217.6916,87.22915,55.41639
sgpcmbeC1.c1,2005,0510:30:00,31 ,14.37849,300.4217,104.7033,75.68489
sgpcmbeC1.c1,2005,0511:30:00,31 ,15.34375,309.0714,109.9017,86.32807
sgpcmbeC1.c1,2005,0512:30:00,31 ,3.465163,307.1802, 107.915,99.99664
sgpcmbeC1.c1,2005,0513:30:00,31 ,15.37706,338.1037, 104.286,92.27027
sgpcmbeC1.c1,2005,0514:30:00,31 , 32.7019,343.8786,122.2318,100.5107
sgpcmbeC1.c1,2005,0515:30:00,31 ,2.620444,294.1431,98.44368,69.03501
sgpcmbeC1.c1,2005,0516:30:00,31 , 1.41392,222.7053,84.38913,54.39536
sgpcmbeC1.c1,2005,0517:30:00,31 ,4.623978,153.7257,63.66538,31.52739
sgpcmbeC1.c1,2005,0518:30:00,31 ,2.776475,77.13206,45.29014,18.54844
sgpcmbeC1.c1,2005,0519:30:00,31 ,1.029289,35.18162,12.90514,6.937581
sgpcmbeC1.c1,2005,0520:30:00,31 ,       0, 1.97059,0.354937,0.641014
sgpcmbeC1.c1,2005,0521:30:00,31 ,       0,1.678505,0.208321,0.498837
sgpcmbeC1.c1,2005,0522:30:00,31 ,       0,1.468466,0.200133,0.451154
sgpcmbeC1.c1,2005,0523:30:00,31 ,       0,1.790199,0.228157,0.465929