datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,03 0:30:00,26 ,       0,0.134473,0.009034,0.032277
sgpcmbeC1.c1,2007,03 1:30:00,25 ,       0, 0.12583,0.005033,0.025166
sgpcmbeC1.c1,2007,03 2:30:00,26 ,       0,0.278634,0.016195,0.060368
sgpcmbeC1.c1,2007,03 3:30:00,27 ,       0,0.414391,0.015348, 0.07975
sgpcmbeC1.c1,2007,03 4:30:00,27 ,       0,0.062587,0.002318,0.012045
sgpcmbeC1.c1,2007,03 5:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,03 6:30:00,27 ,       0,4.514221, 0.21823,0.868898
sgpcmbeC1.c1,2007,03 7:30:00,27 ,0.000033,108.0611,16.73542, 25.6918
sgpcmbeC1.c1,2007,03 8:30:00,24 ,0.000247,242.5558,87.80787,94.77296
sgpcmbeC1.c1,2007,03 9:30:00,26 ,0.230125, 459.363,176.1067,190.2275
sgpcmbeC1.c1,2007,0310:30:00,26 ,0.038303,  644.15,267.1625,259.7092
sgpcmbeC1.c1,2007,0311:30:00,27 ,0.008692,743.1927,363.9817,309.1144
sgpcmbeC1.c1,2007,0312:30:00,27 ,0.112719, 761.983,383.2339,315.6229
sgpcmbeC1.c1,2007,0313:30:00,27 ,0.000172,735.5562,372.6145,308.2731
sgpcmbeC1.c1,2007,0314:30:00,27 ,       0,636.4375,311.3744,261.5441
sgpcmbeC1.c1,2007,0315:30:00,28 ,0.036886,487.8869,237.7219,186.1018
sgpcmbeC1.c1,2007,0316:30:00,27 ,0.094141,301.3723,141.6487,120.7952
sgpcmbeC1.c1,2007,0317:30:00,29 ,       0,140.5195,52.73838,47.25982
sgpcmbeC1.c1,2007,0318:30:00,29 ,       0,22.52208,2.896747,4.543171
sgpcmbeC1.c1,2007,0319:30:00,28 ,       0,2.704712,0.126422,0.529337
sgpcmbeC1.c1,2007,0320:30:00,28 ,       0,1.798313,0.118946,0.438233
sgpcmbeC1.c1,2007,0321:30:00,26 ,       0,2.389618,0.148189,0.539651
sgpcmbeC1.c1,2007,0322:30:00,26 ,       0,1.849503,0.095374,0.378489
sgpcmbeC1.c1,2007,0323:30:00,26 ,       0,1.887078,0.103845,0.397063