datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,03 0:30:00,27 ,0.353329,21.79897,4.692852,5.191688
sgpcmbeC1.c1,2007,03 1:30:00,27 , 0.40487,20.88734, 5.05646,5.768422
sgpcmbeC1.c1,2007,03 2:30:00,27 ,0.336721,35.08665, 5.30717,7.746311
sgpcmbeC1.c1,2007,03 3:30:00,27 ,0.392759,27.04503,5.095756,6.981935
sgpcmbeC1.c1,2007,03 4:30:00,27 ,   0.448, 24.1156,5.843038, 6.78666
sgpcmbeC1.c1,2007,03 5:30:00,27 , 0.49008,18.78952,4.646511,4.894335
sgpcmbeC1.c1,2007,03 6:30:00,27 ,0.355074,29.90687,5.923723,8.131575
sgpcmbeC1.c1,2007,03 7:30:00,27 ,0.409042,18.89009,3.945071,4.594119
sgpcmbeC1.c1,2007,03 8:30:00,26 ,0.312069,16.76076,4.338753,4.377649
sgpcmbeC1.c1,2007,03 9:30:00,28 ,0.551923,19.64581,4.338467,4.191098
sgpcmbeC1.c1,2007,0310:30:00,28 , 0.59069,21.39233,5.421504,5.580686
sgpcmbeC1.c1,2007,0311:30:00,28 ,0.867399,12.01308,3.628277,3.159451
sgpcmbeC1.c1,2007,0312:30:00,28 ,0.745082,14.96197,4.348074,4.275077
sgpcmbeC1.c1,2007,0313:30:00,28 ,0.840697,11.24938,3.921988, 2.92223
sgpcmbeC1.c1,2007,0314:30:00,28 , 0.86367,12.09416,3.842541,2.933764
sgpcmbeC1.c1,2007,0315:30:00,29 ,0.867536,15.10215,4.675746,4.215721
sgpcmbeC1.c1,2007,0316:30:00,29 ,0.869322,22.96802,5.120189,5.436605
sgpcmbeC1.c1,2007,0317:30:00,29 ,0.703209,13.26834,3.925406,3.784241
sgpcmbeC1.c1,2007,0318:30:00,29 ,0.350246,27.79637,5.490541,6.488975
sgpcmbeC1.c1,2007,0319:30:00,29 ,0.779243,17.48238,4.584051,4.242156
sgpcmbeC1.c1,2007,0320:30:00,29 ,0.671444,17.74443,4.762972,5.176402
sgpcmbeC1.c1,2007,0321:30:00,28 ,0.499115, 24.2214,4.718113,5.565806
sgpcmbeC1.c1,2007,0322:30:00,28 ,0.571562,19.98349,4.892904,4.326071
sgpcmbeC1.c1,2007,0323:30:00,28 , 0.55745,25.12282,4.657472,4.995869