datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,01 0:30:00,30 ,       0,1.645153,0.187977, 0.44626
sgpcmbeC1.c1,2005,01 1:30:00,31 ,       0,0.939413,0.080183,0.224709
sgpcmbeC1.c1,2005,01 2:30:00,30 ,       0,1.565668,0.101738,0.336058
sgpcmbeC1.c1,2005,01 3:30:00,31 ,       0,0.756934,0.049429,0.154328
sgpcmbeC1.c1,2005,01 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,01 5:30:00,31 ,       0,0.393456,0.027507,0.089057
sgpcmbeC1.c1,2005,01 6:30:00,31 ,       0, 0.91337,0.036502,0.167386
sgpcmbeC1.c1,2005,01 7:30:00,31 ,       0,10.00293,4.361191,3.113716
sgpcmbeC1.c1,2005,01 8:30:00,31 ,9.787603,134.7234,69.44731,46.60821
sgpcmbeC1.c1,2005,01 9:30:00,31 ,12.62745,320.1648,164.8883,108.4233
sgpcmbeC1.c1,2005,0110:30:00,31 ,27.60892,478.1796,255.4893, 161.617
sgpcmbeC1.c1,2005,0111:30:00,31 ,34.81154,585.9933,326.0114,193.6486
sgpcmbeC1.c1,2005,0112:30:00,31 ,49.78816,631.5692,358.0084,195.2768
sgpcmbeC1.c1,2005,0113:30:00,31 ,40.39817,612.3506,342.1195,194.8917
sgpcmbeC1.c1,2005,0114:30:00,31 ,25.65625,529.5149,279.2375,172.7042
sgpcmbeC1.c1,2005,0115:30:00,31 ,21.75476,390.1299,201.7209,129.5331
sgpcmbeC1.c1,2005,0116:30:00,31 ,6.777352,212.1915,99.83807,66.31918
sgpcmbeC1.c1,2005,0117:30:00,31 ,0.427774,55.38332,18.32448,14.45456
sgpcmbeC1.c1,2005,0118:30:00,31 ,       0,2.571112,0.303833, 0.70269
sgpcmbeC1.c1,2005,0119:30:00,31 ,       0,1.773999,0.146161,0.397972
sgpcmbeC1.c1,2005,0120:30:00,31 ,       0, 1.83686,0.136035,0.385852
sgpcmbeC1.c1,2005,0121:30:00,31 ,       0,2.173469,0.187729,0.479317
sgpcmbeC1.c1,2005,0122:30:00,30 ,       0,1.456896,0.118098,0.356791
sgpcmbeC1.c1,2005,0123:30:00,31 ,       0,1.420756, 0.09802,0.291708