datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,06 0:30:00,25 ,       0,34.18133,6.317983,9.847215
sgpcmbeC1.c1,2005,06 1:30:00,25 ,       0,259.0979,19.75371,54.19084
sgpcmbeC1.c1,2005,06 2:30:00,24 ,       0,560.5098, 29.2066,114.0143
sgpcmbeC1.c1,2005,06 3:30:00,25 ,       0,645.3356,59.56115,162.8784
sgpcmbeC1.c1,2005,06 4:30:00,25 ,       0,664.6487,49.60345,142.9403
sgpcmbeC1.c1,2005,06 5:30:00,25 ,       0,809.9223,40.66327,162.1641
sgpcmbeC1.c1,2005,06 6:30:00,24 ,       0,120.8334,8.690874,25.01615
sgpcmbeC1.c1,2005,06 7:30:00,24 ,       0,119.1656,8.708245,24.35046
sgpcmbeC1.c1,2005,06 8:30:00,25 ,       0,40.65549,7.046886,11.36138
sgpcmbeC1.c1,2005,06 9:30:00,26 ,       0,33.55162,5.007682,8.932811
sgpcmbeC1.c1,2005,0610:30:00,28 ,       0, 252.517,19.02742,49.56395
sgpcmbeC1.c1,2005,0611:30:00,28 ,       0,400.8286,29.83147,78.80741
sgpcmbeC1.c1,2005,0612:30:00,27 ,       0,71.83263,10.27394,19.53422
sgpcmbeC1.c1,2005,0613:30:00,27 ,       0,59.44793,12.09694,20.03417
sgpcmbeC1.c1,2005,0614:30:00,27 ,       0,121.5432,21.29871,35.10513
sgpcmbeC1.c1,2005,0615:30:00,27 ,       0,136.1557,20.70099,35.04862
sgpcmbeC1.c1,2005,0616:30:00,26 ,       0, 184.396,17.56791,39.65414
sgpcmbeC1.c1,2005,0617:30:00,26 ,       0,193.3171,19.12226,42.60498
sgpcmbeC1.c1,2005,0618:30:00,27 ,       0,120.4553,14.60508, 30.0949
sgpcmbeC1.c1,2005,0619:30:00,27 ,       0,164.4651, 15.8596,39.75514
sgpcmbeC1.c1,2005,0620:30:00,26 ,       0,126.6286,9.872415,24.77511
sgpcmbeC1.c1,2005,0621:30:00,26 ,       0,111.9202,9.358605,22.19475
sgpcmbeC1.c1,2005,0622:30:00,26 ,       0,463.6424,24.47404,90.03241
sgpcmbeC1.c1,2005,0623:30:00,26 ,       0,165.7245,16.84898,37.78964