datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,08 0:30:00,31 ,       0,0.074959,0.002418,0.013463
sgpcmbeC1.c1,1997,08 1:30:00,31 ,       0,0.112205,0.004858,0.021081
sgpcmbeC1.c1,1997,08 2:30:00,31 ,       0, 0.26603,0.009898,0.048097
sgpcmbeC1.c1,1997,08 3:30:00,31 ,       0,0.144326,0.010422,0.033593
sgpcmbeC1.c1,1997,08 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,08 5:30:00,31 ,       0,5.079128,1.205961,1.356979
sgpcmbeC1.c1,1997,08 6:30:00,31 ,1.461669,69.27478,32.00646,15.16342
sgpcmbeC1.c1,1997,08 7:30:00,31 ,11.83845,154.3882,82.81184,37.08916
sgpcmbeC1.c1,1997,08 8:30:00,31 ,36.79444,346.7058,138.5009,69.16927
sgpcmbeC1.c1,1997,08 9:30:00,31 ,32.11327,405.8078,188.7315,87.44415
sgpcmbeC1.c1,1997,0810:30:00,31 ,75.22912,512.7737,247.2068,114.0594
sgpcmbeC1.c1,1997,0811:30:00,31 ,59.22303,604.4609,274.5253, 129.665
sgpcmbeC1.c1,1997,0812:30:00,31 ,65.59589,585.9807,284.3061,148.6234
sgpcmbeC1.c1,1997,0813:30:00,31 ,75.92042,549.9803,264.4667,130.9534
sgpcmbeC1.c1,1997,0814:30:00,31 ,25.79213,451.2788, 247.682,128.0755
sgpcmbeC1.c1,1997,0815:30:00,31 ,39.63344,405.0817,199.4132,93.38418
sgpcmbeC1.c1,1997,0816:30:00,31 , 68.4297,304.5506,150.7441,67.32431
sgpcmbeC1.c1,1997,0817:30:00,31 ,29.56596,179.2519,97.27451,31.92901
sgpcmbeC1.c1,1997,0818:30:00,31 ,14.44645, 77.1217,44.02435,13.58145
sgpcmbeC1.c1,1997,0819:30:00,31 ,       0,10.45422,3.757437,3.212173
sgpcmbeC1.c1,1997,0820:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0821:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0822:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0823:30:00,31 ,       0,0.068248,0.002202,0.012258