datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,09 0:30:00,30 ,       0,0.504458,0.079776,0.144033
sgpcmbeC1.c1,2004,09 1:30:00,30 ,       0,1.278197, 0.16777,0.342213
sgpcmbeC1.c1,2004,09 2:30:00,30 ,       0,0.157315, 0.02249,0.049092
sgpcmbeC1.c1,2004,09 3:30:00,30 ,       0,0.573332,0.056721,0.138935
sgpcmbeC1.c1,2004,09 4:30:00,30 ,       0, 0.76814,0.048834,0.163627
sgpcmbeC1.c1,2004,09 5:30:00,30 ,       0,0.608217,0.129259,0.201119
sgpcmbeC1.c1,2004,09 6:30:00,30 , 3.98069,32.31697,19.87606,6.097511
sgpcmbeC1.c1,2004,09 7:30:00,30 , 30.9222,110.0548,70.08587,20.18182
sgpcmbeC1.c1,2004,09 8:30:00,30 ,59.83773,232.6987,110.4665,38.54508
sgpcmbeC1.c1,2004,09 9:30:00,30 ,69.06999,322.3787,148.2527,67.88549
sgpcmbeC1.c1,2004,0910:30:00,30 ,75.74444,403.2664,165.0009,82.18163
sgpcmbeC1.c1,2004,0911:30:00,30 , 78.4366,437.6022,188.7747,93.13386
sgpcmbeC1.c1,2004,0912:30:00,30 ,78.75317,467.6092, 205.445,108.4756
sgpcmbeC1.c1,2004,0913:30:00,30 ,77.55099,363.4333,196.6012,86.24028
sgpcmbeC1.c1,2004,0914:30:00,30 , 74.5645,315.3616,178.0753,75.60841
sgpcmbeC1.c1,2004,0915:30:00,30 ,69.00097,283.5043,153.3831,61.51438
sgpcmbeC1.c1,2004,0916:30:00,30 ,59.69618,184.2635,115.1608,38.38161
sgpcmbeC1.c1,2004,0917:30:00,30 ,39.19439,97.14283,65.42487,16.28792
sgpcmbeC1.c1,2004,0918:30:00,30 ,2.411272, 36.6485,14.76701,9.135669
sgpcmbeC1.c1,2004,0919:30:00,30 ,       0,0.821018,0.081603,0.215175
sgpcmbeC1.c1,2004,0920:30:00,30 ,       0,0.580718,0.019357,0.106024
sgpcmbeC1.c1,2004,0921:30:00,30 ,       0,0.417982,0.037833,0.097947
sgpcmbeC1.c1,2004,0922:30:00,30 ,       0,0.864038,0.051887,0.169376
sgpcmbeC1.c1,2004,0923:30:00,30 ,       0,1.161335,0.103914,0.278181