datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,09 0:30:00,30 ,0.187754, 3.75246, 1.86855,1.040341
sgpcmbeC1.c1,2005,09 1:30:00,30 ,       0,3.802635,1.935129,1.042569
sgpcmbeC1.c1,2005,09 2:30:00,30 ,       0,  3.7542,1.941029,1.107778
sgpcmbeC1.c1,2005,09 3:30:00,30 ,       0,3.809315,1.991164,1.100292
sgpcmbeC1.c1,2005,09 4:30:00,30 ,       0,3.851353,2.002347,1.081303
sgpcmbeC1.c1,2005,09 5:30:00,30 ,       0,3.545654,1.813321,1.071269
sgpcmbeC1.c1,2005,09 6:30:00,30 , 9.30482,46.59996,26.04819,10.50503
sgpcmbeC1.c1,2005,09 7:30:00,30 ,24.49776,219.9807,161.1785,51.57594
sgpcmbeC1.c1,2005,09 8:30:00,30 ,95.56644,422.6899,343.7592,85.17756
sgpcmbeC1.c1,2005,09 9:30:00,30 ,213.0261,622.1385,508.5995,100.3529
sgpcmbeC1.c1,2005,0910:30:00,30 ,386.9005,745.4484, 647.374,104.4393
sgpcmbeC1.c1,2005,0911:30:00,30 ,457.7666, 835.855,740.6113,94.79215
sgpcmbeC1.c1,2005,0912:30:00,30 ,296.0614,868.7925,752.2385,135.1945
sgpcmbeC1.c1,2005,0913:30:00,30 , 253.573,839.4112,711.9451,149.9284
sgpcmbeC1.c1,2005,0914:30:00,30 , 97.8315,783.5151,632.9267,126.1209
sgpcmbeC1.c1,2005,0915:30:00,30 ,153.3195,620.5586,480.4471,125.3972
sgpcmbeC1.c1,2005,0916:30:00,30 ,55.33877,417.5229, 303.667,98.43038
sgpcmbeC1.c1,2005,0917:30:00,30 ,20.84186, 216.453,136.3727,51.97135
sgpcmbeC1.c1,2005,0918:30:00,30 , 1.42024,42.10237,16.55908,11.92806
sgpcmbeC1.c1,2005,0919:30:00,30 ,       0,3.842774,1.456621,1.098564
sgpcmbeC1.c1,2005,0920:30:00,30 ,       0,3.937807,1.555121,1.090648
sgpcmbeC1.c1,2005,0921:30:00,29 ,       0,3.996431,1.638463,1.130987
sgpcmbeC1.c1,2005,0922:30:00,30 ,       0,3.734692,1.645667,1.186326
sgpcmbeC1.c1,2005,0923:30:00,30 ,       0, 3.80737,1.645582,1.163088