datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,06 0:30:00,29 ,       0,2.852467,1.245804,0.822009
sgpcmbeC1.c1,2004,06 1:30:00,29 ,       0,2.687023,1.266652,0.798451
sgpcmbeC1.c1,2004,06 2:30:00,30 ,       0,2.337073,1.131016,0.764061
sgpcmbeC1.c1,2004,06 3:30:00,30 ,       0,2.478894,1.100624, 0.74121
sgpcmbeC1.c1,2004,06 4:30:00,30 ,       0,2.451218, 1.18007,0.765441
sgpcmbeC1.c1,2004,06 5:30:00,30 , 1.53841, 33.2608,18.57615, 10.0376
sgpcmbeC1.c1,2004,06 6:30:00,30 ,1.124679,191.7538,104.6867,61.80525
sgpcmbeC1.c1,2004,06 7:30:00,30 ,6.977065,400.1206,214.9194,126.3114
sgpcmbeC1.c1,2004,06 8:30:00,29 ,6.205064,600.5657,359.8465,204.3474
sgpcmbeC1.c1,2004,06 9:30:00,29 ,18.07767,781.3373, 475.909,282.6129
sgpcmbeC1.c1,2004,0610:30:00,29 ,75.56677, 922.489, 574.653,276.7369
sgpcmbeC1.c1,2004,0611:30:00,29 ,37.62959,1009.987,645.3673,322.7708
sgpcmbeC1.c1,2004,0612:30:00,29 ,5.122305, 1038.38,740.3628,308.4734
sgpcmbeC1.c1,2004,0613:30:00,29 ,33.66748,1012.424,739.0679,239.8369
sgpcmbeC1.c1,2004,0614:30:00,29 ,165.1555,927.5071,714.3468, 205.933
sgpcmbeC1.c1,2004,0615:30:00,29 ,128.5544, 799.526,633.1451,166.0085
sgpcmbeC1.c1,2004,0616:30:00,29 ,69.17173,616.0367,465.9977,136.8092
sgpcmbeC1.c1,2004,0617:30:00,29 ,74.88247,416.9582,306.1471, 81.2208
sgpcmbeC1.c1,2004,0618:30:00,29 ,51.67147,209.7383,142.8668,45.96604
sgpcmbeC1.c1,2004,0619:30:00,29 ,7.415312,54.95124,26.31122,13.37486
sgpcmbeC1.c1,2004,0620:30:00,29 ,       0,2.465806,1.272986,0.806666
sgpcmbeC1.c1,2004,0621:30:00,28 ,       0,2.727439,1.368376,0.861024
sgpcmbeC1.c1,2004,0622:30:00,27 ,       0,2.522214,1.390529,0.793882
sgpcmbeC1.c1,2004,0623:30:00,27 ,       0,2.514888, 1.41001,0.781463