datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,07 0:30:00,31 ,       0,0.271233,0.017864,0.062923
sgpcmbeC1.c1,2005,07 1:30:00,31 ,       0,0.164181,0.008813,0.031956
sgpcmbeC1.c1,2005,07 2:30:00,31 ,       0,0.065567,0.004821,0.015425
sgpcmbeC1.c1,2005,07 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,07 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,07 5:30:00,31 ,       0,4.096312,1.488894,1.270043
sgpcmbeC1.c1,2005,07 6:30:00,31 ,0.001558,101.3943,41.93817,33.03053
sgpcmbeC1.c1,2005,07 7:30:00,29 , 4.81179,287.2176,153.8174,96.26194
sgpcmbeC1.c1,2005,07 8:30:00,29 , 19.6066,485.0439,298.6972,143.2389
sgpcmbeC1.c1,2005,07 9:30:00,29 , 11.2117,661.8357,453.6516, 179.364
sgpcmbeC1.c1,2005,0710:30:00,29 ,5.414856,804.3132,535.7696,230.8041
sgpcmbeC1.c1,2005,0711:30:00,29 ,0.749481,896.5269,643.9747,209.6146
sgpcmbeC1.c1,2005,0712:30:00,30 , 2.67453,929.4197,654.0835,238.9269
sgpcmbeC1.c1,2005,0713:30:00,31 ,1.822083,901.3339,638.0304,224.0497
sgpcmbeC1.c1,2005,0714:30:00,31 ,       0,821.0651,568.8596,230.4213
sgpcmbeC1.c1,2005,0715:30:00,31 ,0.130814,688.2549,446.3347,210.9484
sgpcmbeC1.c1,2005,0716:30:00,30 ,0.355377,528.6414,330.0647,173.7898
sgpcmbeC1.c1,2005,0717:30:00,30 ,0.007591,326.1335, 200.901,101.7264
sgpcmbeC1.c1,2005,0718:30:00,30 ,       0,135.7756, 79.5707,41.16164
sgpcmbeC1.c1,2005,0719:30:00,31 ,       0,17.94125,7.237627, 4.58583
sgpcmbeC1.c1,2005,0720:30:00,31 ,       0,0.287047,0.009807,0.051531
sgpcmbeC1.c1,2005,0721:30:00,31 ,       0,0.082637,0.007065,0.022106
sgpcmbeC1.c1,2005,0722:30:00,31 ,       0,0.081776, 0.00466,0.017531
sgpcmbeC1.c1,2005,0723:30:00,31 ,       0,0.196414,0.014365,0.042018