datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,08 0:30:00,31 ,       0,0.565893,0.056119, 0.14161
sgpcmbeC1.c1,2004,08 1:30:00,31 ,       0,0.230847,0.007447,0.041461
sgpcmbeC1.c1,2004,08 2:30:00,31 ,       0,0.295931,0.011226, 0.05366
sgpcmbeC1.c1,2004,08 3:30:00,31 ,       0,0.189184,0.010372,0.040814
sgpcmbeC1.c1,2004,08 4:30:00,31 ,       0,0.118444,0.003821,0.021273
sgpcmbeC1.c1,2004,08 5:30:00,31 ,       0,1.794936,0.256796,0.478089
sgpcmbeC1.c1,2004,08 6:30:00,31 ,0.000153,44.60981,18.69649, 15.4557
sgpcmbeC1.c1,2004,08 7:30:00,31 ,0.058863,87.56869,39.67519,27.44418
sgpcmbeC1.c1,2004,08 8:30:00,31 ,0.321627,167.9799, 60.0454,45.98708
sgpcmbeC1.c1,2004,08 9:30:00,31 ,0.278919, 229.212,79.62652,62.63561
sgpcmbeC1.c1,2004,0810:30:00,31 ,0.651526,297.3629,90.16756,94.89161
sgpcmbeC1.c1,2004,0811:30:00,31 ,0.670461,335.3876,94.25528,106.4322
sgpcmbeC1.c1,2004,0812:30:00,31 ,1.086711,326.5584,101.8558, 114.955
sgpcmbeC1.c1,2004,0813:30:00,31 ,8.829761,336.9724, 116.873,110.4719
sgpcmbeC1.c1,2004,0814:30:00,31 ,1.515715,274.5657,120.3506,86.51178
sgpcmbeC1.c1,2004,0815:30:00,31 ,1.122578, 233.003,104.0598,73.27637
sgpcmbeC1.c1,2004,0816:30:00,31 ,2.834165,161.0677, 70.4111,38.84573
sgpcmbeC1.c1,2004,0817:30:00,31 ,       0,97.89867,52.78128,19.50267
sgpcmbeC1.c1,2004,0818:30:00,31 ,       0,54.03465,28.80692, 13.3165
sgpcmbeC1.c1,2004,0819:30:00,31 ,       0,6.713684,1.283407, 1.90844
sgpcmbeC1.c1,2004,0820:30:00,31 ,       0,0.168477,0.006824,0.030982
sgpcmbeC1.c1,2004,0821:30:00,31 ,       0,0.265303,0.029774,0.079987
sgpcmbeC1.c1,2004,0822:30:00,31 ,       0,0.141986,0.012341,  0.0386
sgpcmbeC1.c1,2004,0823:30:00,31 ,       0,0.258313,0.008333,0.046394