datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,04 0:30:00,30 ,       0,0.033322,0.001341, 0.00617
sgpcmbeC1.c1,2001,04 1:30:00,30 ,       0,0.064412,0.004207,0.014935
sgpcmbeC1.c1,2001,04 2:30:00,30 ,       0,0.001801, 0.00006,0.000329
sgpcmbeC1.c1,2001,04 3:30:00,30 ,       0,0.063998,0.002133,0.011684
sgpcmbeC1.c1,2001,04 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,04 5:30:00,30 ,       0,2.294292,0.401108,0.610123
sgpcmbeC1.c1,2001,04 6:30:00,30 ,0.552612,14.67164,  8.3722,4.790944
sgpcmbeC1.c1,2001,04 7:30:00,30 ,1.371117,25.20186,12.23376,6.397204
sgpcmbeC1.c1,2001,04 8:30:00,30 ,1.662001,  35.462,12.32895,7.735548
sgpcmbeC1.c1,2001,04 9:30:00,30 ,1.774836,31.94027,11.96726,8.734757
sgpcmbeC1.c1,2001,0410:30:00,30 ,4.439959,41.43777,13.10653,10.65641
sgpcmbeC1.c1,2001,0411:30:00,30 ,2.313773,57.87212,15.60139,14.80986
sgpcmbeC1.c1,2001,0412:30:00,30 , 0.40247,53.72447,17.86846,16.64963
sgpcmbeC1.c1,2001,0413:30:00,30 ,1.483104,63.07986, 21.6091,18.14712
sgpcmbeC1.c1,2001,0414:30:00,30 ,4.834758,69.05071,22.64098,16.82235
sgpcmbeC1.c1,2001,0415:30:00,30 ,4.297068,48.37163,20.19993,13.56355
sgpcmbeC1.c1,2001,0416:30:00,30 ,3.525955, 36.0922,15.64528,8.655058
sgpcmbeC1.c1,2001,0417:30:00,30 ,1.140857,23.35359,13.65311,5.000035
sgpcmbeC1.c1,2001,0418:30:00,30 , 1.74396,17.27242,9.575797,4.454008
sgpcmbeC1.c1,2001,0419:30:00,30 ,       0,1.626362,0.234635,0.410778
sgpcmbeC1.c1,2001,0420:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0421:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0422:30:00,30 ,       0,0.025212,  0.0009,0.004603
sgpcmbeC1.c1,2001,0423:30:00,30 ,       0,0.004858,0.000162,0.000887