datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,03 0:30:00,31 ,292.2233,383.9056,334.2866,21.57256
sgpcmbeC1.c1,2005,03 1:30:00,31 ,289.7993,376.9374, 331.548,21.05832
sgpcmbeC1.c1,2005,03 2:30:00,31 ,289.3455,379.7228,330.6393,21.40346
sgpcmbeC1.c1,2005,03 3:30:00,31 ,288.8968,382.3275,329.7194,21.59759
sgpcmbeC1.c1,2005,03 4:30:00,31 ,283.8053,386.5145,329.4767,  22.118
sgpcmbeC1.c1,2005,03 5:30:00,31 ,277.2379,386.2492,327.2941,22.81856
sgpcmbeC1.c1,2005,03 6:30:00,31 ,  276.42,385.2992, 325.758,22.84817
sgpcmbeC1.c1,2005,03 7:30:00,31 , 288.913,386.7651,333.2552,20.17237
sgpcmbeC1.c1,2005,03 8:30:00,31 ,312.8447,393.6529,350.3381,17.10709
sgpcmbeC1.c1,2005,03 9:30:00,31 ,334.0497,406.7401, 369.197,19.62784
sgpcmbeC1.c1,2005,0310:30:00,31 ,341.6901,434.2571,387.0674,26.34886
sgpcmbeC1.c1,2005,0311:30:00,31 ,345.2667,465.6013,401.1187,31.63719
sgpcmbeC1.c1,2005,0312:30:00,31 , 342.814,465.8592,409.9056,33.91466
sgpcmbeC1.c1,2005,0313:30:00,31 ,344.2302,468.0917,412.8971,34.07741
sgpcmbeC1.c1,2005,0314:30:00,31 ,343.1685, 465.484,412.1171, 33.7857
sgpcmbeC1.c1,2005,0315:30:00,31 ,338.9985,464.9944,405.2663,32.02457
sgpcmbeC1.c1,2005,0316:30:00,31 ,338.6462,451.5985,392.7111,30.03838
sgpcmbeC1.c1,2005,0317:30:00,31 ,337.3173,425.0569,377.1105,26.09864
sgpcmbeC1.c1,2005,0318:30:00,31 ,  307.43,407.9887,357.9065,24.73899
sgpcmbeC1.c1,2005,0319:30:00,31 ,298.6373,399.0121, 348.477,25.21203
sgpcmbeC1.c1,2005,0320:30:00,31 ,  299.79,397.3232,345.0354,24.31131
sgpcmbeC1.c1,2005,0321:30:00,31 ,300.6198,396.2076,343.2998,23.47037
sgpcmbeC1.c1,2005,0322:30:00,31 ,294.6566,391.9728,341.7939,22.40418
sgpcmbeC1.c1,2005,0323:30:00,31 ,295.1434,388.2004, 339.094,21.48045