datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,09 0:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,09 1:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,09 2:30:00,28 ,       0,0.617512,0.022054,0.116699
sgpcmbeC1.c1,1997,09 3:30:00,28 ,       0,1.642084,0.109908,0.354919
sgpcmbeC1.c1,1997,09 4:30:00,28 ,       0,1.652556,0.130865,0.420235
sgpcmbeC1.c1,1997,09 5:30:00,28 ,       0,0.434534,0.043895,0.129178
sgpcmbeC1.c1,1997,09 6:30:00,28 ,3.163816,32.46684,13.15696,6.329525
sgpcmbeC1.c1,1997,09 7:30:00,29 ,2.285929,67.85227,19.19106,14.82106
sgpcmbeC1.c1,1997,09 8:30:00,28 ,2.652123,80.79288,24.52559,19.47915
sgpcmbeC1.c1,1997,09 9:30:00,28 ,1.424763,102.5889,32.42376,30.04278
sgpcmbeC1.c1,1997,0910:30:00,28 ,1.012392,121.6996,39.66237,36.90283
sgpcmbeC1.c1,1997,0911:30:00,28 ,0.945782,138.6474,43.30759,38.18593
sgpcmbeC1.c1,1997,0912:30:00,28 ,0.772646,151.0678,37.38019,42.04049
sgpcmbeC1.c1,1997,0913:30:00,28 ,1.086035,131.0962,33.80117,35.12245
sgpcmbeC1.c1,1997,0914:30:00,28 ,1.403206,88.24815, 29.6053,27.56597
sgpcmbeC1.c1,1997,0915:30:00,27 ,1.535734,88.84898,28.29509,26.57679
sgpcmbeC1.c1,1997,0916:30:00,27 ,3.397409,78.21997,18.52258,18.02389
sgpcmbeC1.c1,1997,0917:30:00,27 ,4.291824, 33.1643,15.76773,9.323619
sgpcmbeC1.c1,1997,0918:30:00,27 ,0.585709,21.02254,10.17315,5.673438
sgpcmbeC1.c1,1997,0919:30:00,27 ,       0,0.440525,0.031493,0.113545
sgpcmbeC1.c1,1997,0920:30:00,27 ,       0,0.363964, 0.01348,0.070045
sgpcmbeC1.c1,1997,0921:30:00,27 ,       0,0.409172,0.015155,0.078745
sgpcmbeC1.c1,1997,0922:30:00,27 ,       0,0.332251,0.012306,0.063942
sgpcmbeC1.c1,1997,0923:30:00,27 ,       0,       0,       0,       0