datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,01 0:30:00,31 ,255.6637,375.5701,306.4782,27.44507
sgpcmbeC1.c1,2005,01 1:30:00,31 ,255.2514,374.0952, 305.809,27.30023
sgpcmbeC1.c1,2005,01 2:30:00,31 ,254.6335,369.6583, 304.975, 26.6415
sgpcmbeC1.c1,2005,01 3:30:00,31 ,255.0723,371.9149,  304.22,26.94077
sgpcmbeC1.c1,2005,01 4:30:00,31 ,253.5713,374.4566,303.1085,27.56867
sgpcmbeC1.c1,2005,01 5:30:00,31 ,253.7758,379.5206,302.3777,27.87102
sgpcmbeC1.c1,2005,01 6:30:00,31 ,253.6366,381.0058,303.4301,28.60741
sgpcmbeC1.c1,2005,01 7:30:00,31 ,253.0544,389.3474, 303.415,29.00148
sgpcmbeC1.c1,2005,01 8:30:00,31 ,257.9567,392.4963, 307.507,26.98565
sgpcmbeC1.c1,2005,01 9:30:00,31 ,268.9463,395.0358,316.0798,26.59664
sgpcmbeC1.c1,2005,0110:30:00,31 ,280.6825,401.7962,325.3084,29.07702
sgpcmbeC1.c1,2005,0111:30:00,31 ,284.1092,410.5602,335.7077,34.51675
sgpcmbeC1.c1,2005,0112:30:00,31 , 281.786,418.0298,342.4704,38.86198
sgpcmbeC1.c1,2005,0113:30:00,31 ,281.2713,420.9283, 346.603,40.41335
sgpcmbeC1.c1,2005,0114:30:00,31 ,281.4448,422.2443,345.1137,39.66634
sgpcmbeC1.c1,2005,0115:30:00,31 ,281.8896,417.5903,340.5838,38.34285
sgpcmbeC1.c1,2005,0116:30:00,31 ,278.5053,412.5775,332.8438, 33.6885
sgpcmbeC1.c1,2005,0117:30:00,31 , 275.531,402.9837,321.3607,27.87615
sgpcmbeC1.c1,2005,0118:30:00,31 ,264.2355,394.3813,315.9179,26.89792
sgpcmbeC1.c1,2005,0119:30:00,31 , 262.451,394.1217,314.2469, 27.6893
sgpcmbeC1.c1,2005,0120:30:00,31 ,260.1516,388.2056, 311.597,26.78986
sgpcmbeC1.c1,2005,0121:30:00,31 ,261.5424,378.7601,310.0898,25.08398
sgpcmbeC1.c1,2005,0122:30:00,31 ,259.0842, 378.776, 309.509, 24.7258
sgpcmbeC1.c1,2005,0123:30:00,31 , 257.962,375.8903,307.6293,24.79171