datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,08 0:30:00,31 ,       0, 0.60059,0.078038,0.180366
sgpcmbeC1.c1,2005,08 1:30:00,30 ,       0,1.060585,0.139365,  0.2739
sgpcmbeC1.c1,2005,08 2:30:00,31 ,       0,0.332635,0.033962, 0.08381
sgpcmbeC1.c1,2005,08 3:30:00,31 ,       0, 0.44543,0.034536, 0.10911
sgpcmbeC1.c1,2005,08 4:30:00,31 ,       0,0.286153,0.012303,0.053622
sgpcmbeC1.c1,2005,08 5:30:00,31 ,       0,7.864678,2.457016,2.544907
sgpcmbeC1.c1,2005,08 6:30:00,31 ,8.364898,152.6129,45.71936,26.63259
sgpcmbeC1.c1,2005,08 7:30:00,31 ,19.06535,182.9375,107.0838,38.55325
sgpcmbeC1.c1,2005,08 8:30:00,31 ,52.99268,291.2637,149.2599,64.86114
sgpcmbeC1.c1,2005,08 9:30:00,31 ,80.01343,381.4155,197.0551,97.38928
sgpcmbeC1.c1,2005,0810:30:00,31 ,87.77528,495.6006,231.9951,115.3813
sgpcmbeC1.c1,2005,0811:30:00,31 , 75.2062, 587.657,270.1364,148.3043
sgpcmbeC1.c1,2005,0812:30:00,31 ,71.09293,626.0535,278.2957,152.8847
sgpcmbeC1.c1,2005,0813:30:00,31 ,72.53776,521.7027,256.0198,128.4429
sgpcmbeC1.c1,2005,0814:30:00,31 ,24.85713,446.8228,235.3945,115.1413
sgpcmbeC1.c1,2005,0815:30:00,31 , 6.04685, 354.801, 189.211,88.25608
sgpcmbeC1.c1,2005,0816:30:00,31 ,2.343435,292.1745,145.4343,69.19358
sgpcmbeC1.c1,2005,0817:30:00,31 ,2.534715, 171.331,93.82036,46.64059
sgpcmbeC1.c1,2005,0818:30:00,31 ,       0,83.16012,42.06276,24.33952
sgpcmbeC1.c1,2005,0819:30:00,31 ,       0,13.77892,4.307937,4.739246
sgpcmbeC1.c1,2005,0820:30:00,31 ,       0,0.043485,0.002759,0.010681
sgpcmbeC1.c1,2005,0821:30:00,31 ,       0, 0.44633,0.043373,0.114826
sgpcmbeC1.c1,2005,0822:30:00,31 ,       0,0.548788,0.030297,0.105975
sgpcmbeC1.c1,2005,0823:30:00,31 ,       0,0.728923,0.077402,0.180242