datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,09 0:30:00,29 ,       0,144.7465,7.370743,26.86409
sgpcmbeC1.c1,2005,09 1:30:00,28 ,       0,38.11063,2.722998,7.375359
sgpcmbeC1.c1,2005,09 2:30:00,29 ,       0,111.0218,6.417082,20.65633
sgpcmbeC1.c1,2005,09 3:30:00,29 ,       0,120.8298, 11.6871,30.43676
sgpcmbeC1.c1,2005,09 4:30:00,29 ,       0, 107.145,10.03125,24.88651
sgpcmbeC1.c1,2005,09 5:30:00,29 ,       0,108.6245,7.691373, 21.1117
sgpcmbeC1.c1,2005,09 6:30:00,29 ,       0,104.2417,9.114328,25.64476
sgpcmbeC1.c1,2005,09 7:30:00,29 ,       0,243.7279,  14.801,49.33861
sgpcmbeC1.c1,2005,09 8:30:00,30 ,       0,157.0574,16.05372,39.64275
sgpcmbeC1.c1,2005,09 9:30:00,30 ,       0,203.8608,14.74541,40.68518
sgpcmbeC1.c1,2005,0910:30:00,29 ,       0, 153.974,9.174671,28.63668
sgpcmbeC1.c1,2005,0911:30:00,29 ,       0,41.33775,5.300978,10.10349
sgpcmbeC1.c1,2005,0912:30:00,29 ,       0,59.04698,6.502606,14.82065
sgpcmbeC1.c1,2005,0913:30:00,28 ,       0,47.82008,5.191588,11.15612
sgpcmbeC1.c1,2005,0914:30:00,29 ,       0,114.3247,10.96555,27.07312
sgpcmbeC1.c1,2005,0915:30:00,29 ,       0,103.2321,13.76634, 29.4988
sgpcmbeC1.c1,2005,0916:30:00,29 ,       0,234.9999,14.34044,46.51867
sgpcmbeC1.c1,2005,0917:30:00,29 ,       0,261.2423,12.92697,48.84197
sgpcmbeC1.c1,2005,0918:30:00,29 ,       0,60.64867,6.586236,15.55403
sgpcmbeC1.c1,2005,0919:30:00,29 ,       0,  64.276, 6.83092,16.14376
sgpcmbeC1.c1,2005,0920:30:00,29 ,       0, 157.159,14.74958,38.26736
sgpcmbeC1.c1,2005,0921:30:00,28 ,       0,148.9634,16.53605,43.94638
sgpcmbeC1.c1,2005,0922:30:00,29 ,       0,207.8943,18.64818,48.01964
sgpcmbeC1.c1,2005,0923:30:00,29 ,       0,263.2678,12.74794,49.04358