datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,05 0:30:00,31 ,0.883279, 2.76551,1.851913,0.446785
sgpcmbeC1.c1,2005,05 1:30:00,31 ,0.481661,2.834974,1.682093,0.587867
sgpcmbeC1.c1,2005,05 2:30:00,31 ,0.603215,2.937457, 1.78867,0.523577
sgpcmbeC1.c1,2005,05 3:30:00,31 ,0.756672,2.865566,1.791735,0.545823
sgpcmbeC1.c1,2005,05 4:30:00,31 ,1.021364,3.061158,1.792865,0.512011
sgpcmbeC1.c1,2005,05 5:30:00,31 ,2.395792,28.56527,13.89558,8.177967
sgpcmbeC1.c1,2005,05 6:30:00,31 ,11.74788,193.4511,  104.26,54.63997
sgpcmbeC1.c1,2005,05 7:30:00,31 ,53.72637,394.5244,256.9468,109.4754
sgpcmbeC1.c1,2005,05 8:30:00,31 , 20.2661,607.9249,403.8468,177.7878
sgpcmbeC1.c1,2005,05 9:30:00,31 , 39.1148,791.9474, 560.069,222.5456
sgpcmbeC1.c1,2005,0510:30:00,31 ,246.1083,921.6937,670.3739,237.8166
sgpcmbeC1.c1,2005,0511:30:00,31 ,278.6159,1003.506,727.6031, 258.601
sgpcmbeC1.c1,2005,0512:30:00,31 ,84.98587,1025.996,736.7379,293.0605
sgpcmbeC1.c1,2005,0513:30:00,31 ,131.5352,993.3418,729.4934,283.6722
sgpcmbeC1.c1,2005,0514:30:00,31 ,30.37472,910.7322,646.4584,261.8919
sgpcmbeC1.c1,2005,0515:30:00,31 , 9.76955,757.4622,547.6094,217.6937
sgpcmbeC1.c1,2005,0516:30:00,31 ,10.98748,578.4435,396.0948,176.6264
sgpcmbeC1.c1,2005,0517:30:00,31 ,12.66527, 371.029, 247.116,111.3474
sgpcmbeC1.c1,2005,0518:30:00,31 ,5.952335,172.8782,109.5473,45.28687
sgpcmbeC1.c1,2005,0519:30:00,31 ,2.056981,38.56437,12.97845,7.569391
sgpcmbeC1.c1,2005,0520:30:00,31 ,1.041813,3.093933,1.961414,0.516462
sgpcmbeC1.c1,2005,0521:30:00,31 ,1.015648,2.935321,1.920554,0.510202
sgpcmbeC1.c1,2005,0522:30:00,31 ,0.995858,2.748034,1.955468,0.434591
sgpcmbeC1.c1,2005,0523:30:00,31 ,1.090651,2.992043, 1.86232,0.477081