datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,09 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,09 1:30:00,30 ,       0,1.158138,0.074891,0.285152
sgpcmbeC1.c1,2001,09 2:30:00,30 ,       0,1.880437,0.062681,0.343319
sgpcmbeC1.c1,2001,09 3:30:00,30 ,       0,1.269299, 0.04231,0.231741
sgpcmbeC1.c1,2001,09 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,09 5:30:00,30 ,       0,1.452333, 0.10343,0.329937
sgpcmbeC1.c1,2001,09 6:30:00,30 ,6.404594,41.15404, 23.5749,11.29228
sgpcmbeC1.c1,2001,09 7:30:00,30 ,6.159747,85.64354,48.95449,21.52879
sgpcmbeC1.c1,2001,09 8:30:00,29 ,2.119596,117.1075,61.74501,26.09699
sgpcmbeC1.c1,2001,09 9:30:00,30 ,5.908181,186.3012,76.14138,50.78362
sgpcmbeC1.c1,2001,0910:30:00,30 ,17.63182,248.0769,67.99048,61.45681
sgpcmbeC1.c1,2001,0911:30:00,30 ,11.06407,227.3293, 75.1938,73.81009
sgpcmbeC1.c1,2001,0912:30:00,30 ,4.134306,276.1771,84.12221,87.73303
sgpcmbeC1.c1,2001,0913:30:00,30 ,19.60096,420.5152,97.42853,104.1954
sgpcmbeC1.c1,2001,0914:30:00,30 ,29.71169,239.4758, 89.9622,68.76562
sgpcmbeC1.c1,2001,0915:30:00,30 ,30.99945,212.2752,79.10092,48.27562
sgpcmbeC1.c1,2001,0916:30:00,30 ,3.511285,119.3802,62.76918,26.04959
sgpcmbeC1.c1,2001,0917:30:00,30 ,2.000954, 88.2986,50.88415,21.99105
sgpcmbeC1.c1,2001,0918:30:00,30 ,4.669858,40.72357,17.33459,10.55941
sgpcmbeC1.c1,2001,0919:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0920:30:00,30 ,       0,1.766212,0.058874,0.322465
sgpcmbeC1.c1,2001,0921:30:00,30 ,       0,1.101524,0.036717, 0.20111
sgpcmbeC1.c1,2001,0922:30:00,30 ,       0,1.480393,0.071389,0.292195
sgpcmbeC1.c1,2001,0923:30:00,30 ,       0,1.554386,0.074027,0.304894