datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,09 0:30:00,30 ,       0,0.218057,0.009775,0.040413
sgpcmbeC1.c1,2001,09 1:30:00,30 ,       0,0.586539,    0.03, 0.11838
sgpcmbeC1.c1,2001,09 2:30:00,30 ,       0,1.267233,0.047878,0.231851
sgpcmbeC1.c1,2001,09 3:30:00,30 ,       0,0.421659,0.014055,0.076984
sgpcmbeC1.c1,2001,09 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,09 5:30:00,30 ,       0,0.453764,0.037781,0.093387
sgpcmbeC1.c1,2001,09 6:30:00,30 ,0.283007, 30.6439,9.311093,9.839676
sgpcmbeC1.c1,2001,09 7:30:00,30 ,0.064077,197.6348,84.80889,73.54771
sgpcmbeC1.c1,2001,09 8:30:00,29 ,0.153227,397.1414,205.2448,151.1191
sgpcmbeC1.c1,2001,09 9:30:00,30 ,0.328433,579.9415,308.2767,220.6891
sgpcmbeC1.c1,2001,0910:30:00,30 ,0.483295,721.9855,429.8369,265.4845
sgpcmbeC1.c1,2001,0911:30:00,30 ,0.479065,811.1249,528.4134,272.6451
sgpcmbeC1.c1,2001,0912:30:00,30 ,3.280548, 837.259,539.2107,280.9677
sgpcmbeC1.c1,2001,0913:30:00,30 ,5.188965,800.6652,520.3484,257.0355
sgpcmbeC1.c1,2001,0914:30:00,30 ,0.034027,706.4838,447.5641,230.5092
sgpcmbeC1.c1,2001,0915:30:00,30 ,0.010075,557.4789,336.0321,191.1101
sgpcmbeC1.c1,2001,0916:30:00,30 ,0.010323,373.7207, 203.306, 127.486
sgpcmbeC1.c1,2001,0917:30:00,30 ,0.003731,177.0845,75.25818, 55.0263
sgpcmbeC1.c1,2001,0918:30:00,30 ,0.194988, 28.8484,5.632767,8.311573
sgpcmbeC1.c1,2001,0919:30:00,30 ,       0,0.732316,0.065592,0.157114
sgpcmbeC1.c1,2001,0920:30:00,30 ,       0, 1.37088,0.052511,0.251558
sgpcmbeC1.c1,2001,0921:30:00,30 ,       0,0.596321,0.025758,0.110111
sgpcmbeC1.c1,2001,0922:30:00,30 ,       0,0.665966,0.035213,0.129941
sgpcmbeC1.c1,2001,0923:30:00,30 ,       0,0.706564,0.055116,0.148762