datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,01 0:30:00,26 ,       0,0.626539,0.072406,0.147991
sgpcmbeC1.c1,1998,01 1:30:00,28 ,       0,0.133135,0.012651,0.034138
sgpcmbeC1.c1,1998,01 2:30:00,26 ,       0,0.427335,0.044877,0.113289
sgpcmbeC1.c1,1998,01 3:30:00,28 ,       0,0.405409,0.027563,0.081762
sgpcmbeC1.c1,1998,01 4:30:00,29 ,       0,0.297614,0.047645,0.093444
sgpcmbeC1.c1,1998,01 5:30:00,29 ,       0,0.525464,0.057855,0.142283
sgpcmbeC1.c1,1998,01 6:30:00,29 ,       0,0.431393,0.074706,0.119481
sgpcmbeC1.c1,1998,01 7:30:00,29 ,0.143282, 10.1938,3.622226,2.877227
sgpcmbeC1.c1,1998,01 8:30:00,29 ,5.201066,135.0531,60.92737,42.09983
sgpcmbeC1.c1,1998,01 9:30:00,29 ,7.851014,315.8824, 161.054, 108.791
sgpcmbeC1.c1,1998,0110:30:00,29 ,19.56555, 468.576,245.3677,166.1039
sgpcmbeC1.c1,1998,0111:30:00,29 ,25.32707,574.4034,303.5087,203.9986
sgpcmbeC1.c1,1998,0112:30:00,29 ,40.61284,620.8171,346.1945,216.7832
sgpcmbeC1.c1,1998,0113:30:00,29 ,35.95315,602.8288,324.1309,202.5445
sgpcmbeC1.c1,1998,0114:30:00,29 ,41.32455,524.9072,285.8595,170.1127
sgpcmbeC1.c1,1998,0115:30:00,29 ,29.85002, 392.184,200.8503,128.6957
sgpcmbeC1.c1,1998,0116:30:00,29 ,9.646256,220.1078,104.3644,73.17207
sgpcmbeC1.c1,1998,0117:30:00,29 ,1.101487,47.66362,17.49893, 15.5597
sgpcmbeC1.c1,1998,0118:30:00,28 ,       0, 1.18075,0.273163,0.333329
sgpcmbeC1.c1,1998,0119:30:00,28 ,       0,0.797693,0.122976, 0.18149
sgpcmbeC1.c1,1998,0120:30:00,28 ,       0,0.582048,0.061895,0.133884
sgpcmbeC1.c1,1998,0121:30:00,27 ,       0,0.185945,0.039692,0.062101
sgpcmbeC1.c1,1998,0122:30:00,27 ,       0, 0.66155,0.063265,0.146922
sgpcmbeC1.c1,1998,0123:30:00,27 ,       0, 0.62152,0.058016,0.158988