datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,08 0:30:00,31 ,       0, 0.36484,0.025168,0.082397
sgpcmbeC1.c1,2007,08 1:30:00,31 ,       0, 0.57181,0.021615,0.102793
sgpcmbeC1.c1,2007,08 2:30:00,30 ,       0,0.095783, 0.00519,0.020305
sgpcmbeC1.c1,2007,08 3:30:00,30 ,       0,0.247053,0.010721,0.046665
sgpcmbeC1.c1,2007,08 4:30:00,31 ,       0,0.143971,0.006932, 0.02762
sgpcmbeC1.c1,2007,08 5:30:00,31 ,       0,0.499296,  0.2395,0.144136
sgpcmbeC1.c1,2007,08 6:30:00,31 ,0.091087,54.19846,23.14445,18.33169
sgpcmbeC1.c1,2007,08 7:30:00,31 ,0.124079,214.4025,120.4099, 71.1002
sgpcmbeC1.c1,2007,08 8:30:00,31 ,0.554565,398.5262,267.6399,118.2113
sgpcmbeC1.c1,2007,08 9:30:00,31 ,1.255981,570.8111,370.3085,196.9685
sgpcmbeC1.c1,2007,0810:30:00,31 ,16.06131,696.5531,463.0377,234.8599
sgpcmbeC1.c1,2007,0811:30:00,31 ,0.371674,772.4891,  547.94, 245.404
sgpcmbeC1.c1,2007,0812:30:00,31 ,0.710518, 821.601, 539.752,256.7362
sgpcmbeC1.c1,2007,0813:30:00,31 ,3.625229,784.1766,509.6593,255.2544
sgpcmbeC1.c1,2007,0814:30:00,31 ,0.372021,730.7408,491.1351,220.8555
sgpcmbeC1.c1,2007,0815:30:00,31 ,0.989853, 582.768,384.1792,175.6222
sgpcmbeC1.c1,2007,0816:30:00,31 ,0.306759, 409.761,258.4463, 132.543
sgpcmbeC1.c1,2007,0817:30:00,31 ,0.063744,232.4983,141.5474,73.18497
sgpcmbeC1.c1,2007,0818:30:00,31 ,       0,77.18996,33.75292,24.30862
sgpcmbeC1.c1,2007,0819:30:00,31 ,0.009307, 3.63027,0.770174,0.818913
sgpcmbeC1.c1,2007,0820:30:00,26 ,       0,1.098614,0.093024,0.233646
sgpcmbeC1.c1,2007,0821:30:00,31 ,       0,0.808553,0.034155,  0.1464
sgpcmbeC1.c1,2007,0822:30:00,31 ,       0,0.435568,0.040204,0.104372
sgpcmbeC1.c1,2007,0823:30:00,31 ,       0,0.414389,0.040133,0.107704