datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,09 0:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,09 1:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,09 2:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,09 3:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,09 4:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,09 5:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,09 6:30:00,30 ,0.117291, 33.3189,16.65779,7.675895
sgpcmbeC1.c1,2006,09 7:30:00,30 ,6.382711,174.6906,71.32158,40.64766
sgpcmbeC1.c1,2006,09 8:30:00,27 ,19.81352,211.3382,100.4603,53.38735
sgpcmbeC1.c1,2006,09 9:30:00,28 ,42.12392,273.1215,134.3433,69.88176
sgpcmbeC1.c1,2006,0910:30:00,30 ,64.50085,370.0578,148.4757,76.92368
sgpcmbeC1.c1,2006,0911:30:00,30 ,69.31362,476.9996,196.4746,127.7616
sgpcmbeC1.c1,2006,0912:30:00,30 ,71.22759,479.3212,212.0704,127.9504
sgpcmbeC1.c1,2006,0913:30:00,30 ,70.90449,494.1099,201.5551,115.2345
sgpcmbeC1.c1,2006,0914:30:00,30 ,66.99973, 430.238,199.7566,117.3392
sgpcmbeC1.c1,2006,0915:30:00,30 ,61.65663,306.3898,151.7057,69.61191
sgpcmbeC1.c1,2006,0916:30:00,30 ,52.43993,203.1374,124.4067,48.89191
sgpcmbeC1.c1,2006,0917:30:00,30 ,33.63767,146.6218, 70.9721,28.50829
sgpcmbeC1.c1,2006,0918:30:00,30 ,1.456152,32.94515,12.58617,8.583897
sgpcmbeC1.c1,2006,0919:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0920:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0921:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0922:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0923:30:00,29 ,       0,       0,       0,       0