datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,10 0:30:00,30 ,       0,0.191768, 0.01146,0.041155
sgpcmbeC1.c1,2003,10 1:30:00,30 ,       0,0.029305, 0.00257,0.007698
sgpcmbeC1.c1,2003,10 2:30:00,30 ,       0, 0.17174, 0.00757,0.032611
sgpcmbeC1.c1,2003,10 3:30:00,30 ,       0,0.091893,0.003897,0.017235
sgpcmbeC1.c1,2003,10 4:30:00,30 ,       0,0.023772,0.000985,0.004431
sgpcmbeC1.c1,2003,10 5:30:00,30 ,       0,0.033792,0.001734,0.006601
sgpcmbeC1.c1,2003,10 6:30:00,30 ,       0,4.716853,1.754625,1.294255
sgpcmbeC1.c1,2003,10 7:30:00,30 ,2.313422,15.28513,8.900448,4.119617
sgpcmbeC1.c1,2003,10 8:30:00,30 ,3.046405,26.12668,11.34455,5.045817
sgpcmbeC1.c1,2003,10 9:30:00,31 ,2.955442, 32.6684,12.22374,8.909286
sgpcmbeC1.c1,2003,1010:30:00,31 ,3.507257,38.58798,11.53725,  9.4783
sgpcmbeC1.c1,2003,1011:30:00,31 ,0.792052,51.50406,14.28911,15.28862
sgpcmbeC1.c1,2003,1012:30:00,31 ,0.511991,44.73973,12.74839,14.05344
sgpcmbeC1.c1,2003,1013:30:00,31 ,1.881807, 48.2453,12.38538,14.25145
sgpcmbeC1.c1,2003,1014:30:00,31 ,1.278244,44.71346,13.14842,11.49867
sgpcmbeC1.c1,2003,1015:30:00,31 ,1.307602,34.45216,11.92103,8.036671
sgpcmbeC1.c1,2003,1016:30:00,31 ,0.766661,18.87654,10.48632,4.414984
sgpcmbeC1.c1,2003,1017:30:00,31 ,0.649398,11.85981,7.398237,3.775809
sgpcmbeC1.c1,2003,1018:30:00,30 ,       0,0.726465,0.024216,0.132634
sgpcmbeC1.c1,2003,1019:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,1020:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,1021:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,1022:30:00,30 ,       0,0.004397,0.000147,0.000803
sgpcmbeC1.c1,2003,1023:30:00,30 ,       0,0.114016,0.003801,0.020816