datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,04 0:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,04 1:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,04 2:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,04 3:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,04 4:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,04 5:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,04 6:30:00,30 ,0.000065,0.999769,0.418232,0.431043
sgpcmbeC1.c1,2006,04 7:30:00,30 ,0.000349,0.999995,0.433104,0.452308
sgpcmbeC1.c1,2006,04 8:30:00,30 ,0.001753,       1,0.387885,0.428078
sgpcmbeC1.c1,2006,04 9:30:00,30 ,0.001059,       1,0.387211,0.424389
sgpcmbeC1.c1,2006,0410:30:00,30 ,0.000492,       1, 0.45318,0.432528
sgpcmbeC1.c1,2006,0411:30:00,30 ,0.000067,       1,0.442515,0.434822
sgpcmbeC1.c1,2006,0412:30:00,30 ,3.313E-6,       1, 0.33294, 0.42734
sgpcmbeC1.c1,2006,0413:30:00,30 ,8.153E-6,       1,0.353283,0.435252
sgpcmbeC1.c1,2006,0414:30:00,30 ,0.000026,       1,0.410958,0.446091
sgpcmbeC1.c1,2006,0415:30:00,30 ,0.000073,       1,0.410767,0.445478
sgpcmbeC1.c1,2006,0416:30:00,30 ,0.001123,       1,0.464508,0.451516
sgpcmbeC1.c1,2006,0417:30:00,30 ,0.001835,       1, 0.42076,0.433941
sgpcmbeC1.c1,2006,0418:30:00,30 ,0.000888,0.999994, 0.37446,0.398246
sgpcmbeC1.c1,2006,0419:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,0420:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,0421:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,0422:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2006,0423:30:00,0 ,       .,       .,       .,       .