datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,06 0:30:00,30 ,       0,1.091901,0.036397,0.199353
sgpcmbeC1.c1,1997,06 1:30:00,30 ,       0,2.008987,0.066966,0.366789
sgpcmbeC1.c1,1997,06 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,06 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,06 4:30:00,30 ,       0,0.389403, 0.01298,0.071095
sgpcmbeC1.c1,1997,06 5:30:00,30 ,1.492826,38.34101, 18.9983,8.601729
sgpcmbeC1.c1,1997,06 6:30:00,30 ,5.033636,66.72488,43.65842,18.51839
sgpcmbeC1.c1,1997,06 7:30:00,30 ,8.525909,118.9005,57.62981,24.05471
sgpcmbeC1.c1,1997,06 8:30:00,30 ,13.19466,177.1876,82.25789,48.16591
sgpcmbeC1.c1,1997,06 9:30:00,30 ,23.70109,264.5825,101.2732,69.26208
sgpcmbeC1.c1,1997,0610:30:00,30 ,4.561555,298.7662,134.8051,94.79599
sgpcmbeC1.c1,1997,0611:30:00,30 ,11.24837,324.6489,134.3478,104.0648
sgpcmbeC1.c1,1997,0612:30:00,30 ,3.912463,348.9269,140.1528,113.4704
sgpcmbeC1.c1,1997,0613:30:00,30 ,12.65375,379.4938,158.2863,110.9494
sgpcmbeC1.c1,1997,0614:30:00,30 ,26.47403,305.5541,155.6017,91.76044
sgpcmbeC1.c1,1997,0615:30:00,30 ,40.66632,278.5991, 138.895,77.88377
sgpcmbeC1.c1,1997,0616:30:00,30 ,48.16112,218.1025,120.8107,54.92902
sgpcmbeC1.c1,1997,0617:30:00,30 ,2.702893,158.7081,74.49903,39.29959
sgpcmbeC1.c1,1997,0618:30:00,30 ,10.31473,89.07969,45.90766,22.28596
sgpcmbeC1.c1,1997,0619:30:00,30 ,1.278941,34.13182,20.59706,9.134627
sgpcmbeC1.c1,1997,0620:30:00,30 ,       0,0.455926,0.028749,  0.1096
sgpcmbeC1.c1,1997,0621:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0622:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0623:30:00,30 ,       0, 1.70044,0.085274,0.342865