datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,06 0:30:00,30 ,       0,0.120812,0.004027,0.022057
sgpcmbeC1.c1,1997,06 1:30:00,30 ,       0,0.099485,0.003316,0.018163
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 ,       0,0.082111,0.004271,0.016929
sgpcmbeC1.c1,1997,06 5:30:00,30 ,0.235361,11.72895,5.570224,3.146199
sgpcmbeC1.c1,1997,06 6:30:00,30 , 0.91486,18.77203,10.87821,5.108229
sgpcmbeC1.c1,1997,06 7:30:00,30 ,1.822126,30.28086,12.40004,6.462436
sgpcmbeC1.c1,1997,06 8:30:00,30 ,2.457225,39.01596,15.27576,11.38641
sgpcmbeC1.c1,1997,06 9:30:00,30 ,3.071678,54.71188, 18.4566,15.43733
sgpcmbeC1.c1,1997,0610:30:00,30 ,1.104218,53.10347,23.24556,17.30924
sgpcmbeC1.c1,1997,0611:30:00,30 ,0.946652,55.69297,22.53916,17.76702
sgpcmbeC1.c1,1997,0612:30:00,30 ,0.668771, 57.7295,22.61663,18.43236
sgpcmbeC1.c1,1997,0613:30:00,30 ,0.660986,64.01476,25.68141,18.71296
sgpcmbeC1.c1,1997,0614:30:00,30 ,1.833874, 51.7493,26.38335,16.79093
sgpcmbeC1.c1,1997,0615:30:00,30 , 3.90546, 53.1911,25.26309,15.74481
sgpcmbeC1.c1,1997,0616:30:00,30 ,6.931846,46.13581,24.59544,12.81659
sgpcmbeC1.c1,1997,0617:30:00,30 ,0.631684,37.55721,16.61208,10.22404
sgpcmbeC1.c1,1997,0618:30:00,30 ,2.038959,24.08406,11.43461,5.814886
sgpcmbeC1.c1,1997,0619:30:00,30 ,       0, 9.42643,5.577283,3.054463
sgpcmbeC1.c1,1997,0620:30:00,30 ,       0,0.045978,0.001533,0.008394
sgpcmbeC1.c1,1997,0621:30:00,30 ,       0,0.037538,0.001251,0.006854
sgpcmbeC1.c1,1997,0622:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0623:30:00,30 ,       0,       0,       0,       0