datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,06 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,06 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,06 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,06 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,06 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,06 5:30:00,30 ,0.013924,19.41611,6.219209,5.822301
sgpcmbeC1.c1,2003,06 6:30:00,30 ,0.017408,52.69653,25.54522,19.03506
sgpcmbeC1.c1,2003,06 7:30:00,30 ,0.146237,137.8768, 48.9059,37.50039
sgpcmbeC1.c1,2003,06 8:30:00,30 ,0.471566,190.1771,67.65144,54.88824
sgpcmbeC1.c1,2003,06 9:30:00,30 ,0.683471,301.3761,81.49638,82.41727
sgpcmbeC1.c1,2003,0610:30:00,30 ,1.157233,309.8531,126.3653,107.4177
sgpcmbeC1.c1,2003,0611:30:00,30 ,1.867651,330.8542,141.3655,117.9823
sgpcmbeC1.c1,2003,0612:30:00,30 ,2.919367,344.6754,124.6956,120.1188
sgpcmbeC1.c1,2003,0613:30:00,30 ,0.323085,334.1917,131.7081,116.8383
sgpcmbeC1.c1,2003,0614:30:00,30 ,1.084354,308.5281,134.5181,101.0368
sgpcmbeC1.c1,2003,0615:30:00,30 ,       0,267.3909,111.1859,76.82624
sgpcmbeC1.c1,2003,0616:30:00,30 ,0.180006,159.1246,70.92797,50.06695
sgpcmbeC1.c1,2003,0617:30:00,30 , 0.00354, 120.997,55.24767,32.22782
sgpcmbeC1.c1,2003,0618:30:00,30 ,       0,62.53453,28.33096,20.90144
sgpcmbeC1.c1,2003,0619:30:00,30 ,       0, 19.4395,6.108091,6.996932
sgpcmbeC1.c1,2003,0620:30:00,30 ,       0,1.513857,0.074833, 0.30246
sgpcmbeC1.c1,2003,0621:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0622:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0623:30:00,30 ,       0,       0,       0,       0