datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,06 0:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,06 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,06 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,06 3:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,06 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,06 5:30:00,30 ,       0,31.99637,13.95755,8.111493
sgpcmbeC1.c1,2007,06 6:30:00,30 ,1.440453,150.1295,69.83359,31.74684
sgpcmbeC1.c1,2007,06 7:30:00,30 ,12.75619,239.1415,136.6181,56.53538
sgpcmbeC1.c1,2007,06 8:30:00,30 , 43.3755,340.5345, 202.861,83.32364
sgpcmbeC1.c1,2007,06 9:30:00,30 ,84.69231,373.8487,243.9933, 88.6295
sgpcmbeC1.c1,2007,0610:30:00,29 ,67.12975,507.7576,268.5355,127.1018
sgpcmbeC1.c1,2007,0611:30:00,29 ,36.07055,501.2384,276.3561, 139.168
sgpcmbeC1.c1,2007,0612:30:00,29 ,62.88701,548.2746,286.4356,134.8108
sgpcmbeC1.c1,2007,0613:30:00,28 ,64.86601,505.2189, 270.315,124.0574
sgpcmbeC1.c1,2007,0614:30:00,29 ,33.74364,530.8825, 259.574,124.9675
sgpcmbeC1.c1,2007,0615:30:00,29 ,43.05129,502.3366,253.6527,97.60035
sgpcmbeC1.c1,2007,0616:30:00,30 ,47.14056,318.9382,191.6673,73.30249
sgpcmbeC1.c1,2007,0617:30:00,30 ,4.936469,246.1738,126.4776,61.74621
sgpcmbeC1.c1,2007,0618:30:00,30 ,       0,135.7567,68.42088,32.64904
sgpcmbeC1.c1,2007,0619:30:00,30 ,       0,30.43262, 14.8594,8.564081
sgpcmbeC1.c1,2007,0620:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0621:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0622:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0623:30:00,29 ,       0,       0,       0,       0