datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,09 0:30:00,29 ,       0,253.5818,21.39326,49.14116
sgpcmbeC1.c1,2006,09 1:30:00,30 ,       0,148.8986,24.67485,41.45374
sgpcmbeC1.c1,2006,09 2:30:00,30 ,       0,184.9031,27.01257,48.05815
sgpcmbeC1.c1,2006,09 3:30:00,30 ,       0,303.6327,27.84089,71.54015
sgpcmbeC1.c1,2006,09 4:30:00,30 ,       0,409.4153,34.02761,91.32657
sgpcmbeC1.c1,2006,09 5:30:00,30 ,       0,297.6353,25.69381,72.94544
sgpcmbeC1.c1,2006,09 6:30:00,30 ,       0,402.4172,30.30364,84.05679
sgpcmbeC1.c1,2006,09 7:30:00,30 ,       0,255.4138,20.73555,50.70188
sgpcmbeC1.c1,2006,09 8:30:00,30 ,       0,210.9777,28.02457,55.45489
sgpcmbeC1.c1,2006,09 9:30:00,30 ,       0,269.8061,29.13922,67.46839
sgpcmbeC1.c1,2006,0910:30:00,30 ,       0,366.6235,23.09571,70.42952
sgpcmbeC1.c1,2006,0911:30:00,30 ,       0,95.31809,14.91501,22.34581
sgpcmbeC1.c1,2006,0912:30:00,30 ,       0,  310.74,24.23088,58.46399
sgpcmbeC1.c1,2006,0913:30:00,30 ,       0,90.03559,17.92467,26.70552
sgpcmbeC1.c1,2006,0914:30:00,30 ,       0,108.7702,17.64147,28.93981
sgpcmbeC1.c1,2006,0915:30:00,30 ,       0, 135.409,18.96561,35.96465
sgpcmbeC1.c1,2006,0916:30:00,30 ,       0,106.0893,13.46959,26.82027
sgpcmbeC1.c1,2006,0917:30:00,30 ,       0,61.32233,9.999472,14.48734
sgpcmbeC1.c1,2006,0918:30:00,30 ,       0,38.68537,6.579784,10.60518
sgpcmbeC1.c1,2006,0919:30:00,30 ,       0,146.2794,15.01368,35.64887
sgpcmbeC1.c1,2006,0920:30:00,30 ,       0,265.8377,17.21461, 49.6652
sgpcmbeC1.c1,2006,0921:30:00,29 ,       0,264.7849,18.61475,53.56305
sgpcmbeC1.c1,2006,0922:30:00,29 ,       0,195.7873,14.01079,40.52295
sgpcmbeC1.c1,2006,0923:30:00,29 ,       0,52.97495,7.898628,13.64237