datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,11 0:30:00,28 ,       0,1.520869,0.145349,0.399468
sgpcmbeC1.c1,2002,11 1:30:00,29 ,       0,2.086767,0.137109,0.512475
sgpcmbeC1.c1,2002,11 2:30:00,28 ,       0,1.967432,0.132042,0.405658
sgpcmbeC1.c1,2002,11 3:30:00,27 ,       0,1.194086,0.106823,0.299883
sgpcmbeC1.c1,2002,11 4:30:00,25 ,       0,0.466427,0.025906,0.095157
sgpcmbeC1.c1,2002,11 5:30:00,30 ,       0,2.239398,0.096324,0.412385
sgpcmbeC1.c1,2002,11 6:30:00,30 ,       0,2.936108,0.231365,  0.5502
sgpcmbeC1.c1,2002,11 7:30:00,30 ,5.397082,74.06779,33.00601,17.77019
sgpcmbeC1.c1,2002,11 8:30:00,30 ,19.43475,257.6432,164.6091,65.77657
sgpcmbeC1.c1,2002,11 9:30:00,30 ,37.01923,432.7328,305.7596,113.5934
sgpcmbeC1.c1,2002,1110:30:00,30 ,47.73139,566.2516,419.8615,133.6617
sgpcmbeC1.c1,2002,1111:30:00,30 ,60.88354,655.1156,489.6151,170.9922
sgpcmbeC1.c1,2002,1112:30:00,30 ,66.27775,660.9262, 492.821,178.2001
sgpcmbeC1.c1,2002,1113:30:00,30 , 60.9881,618.0085,451.5277, 164.872
sgpcmbeC1.c1,2002,1114:30:00,30 , 44.6339,502.2238,377.7661,136.0268
sgpcmbeC1.c1,2002,1115:30:00,30 ,30.59056,340.1933,251.8833,88.33173
sgpcmbeC1.c1,2002,1116:30:00,30 ,11.95281,154.5829,102.8183,36.95487
sgpcmbeC1.c1,2002,1117:30:00,30 ,1.108741,15.80825, 6.64521,4.103479
sgpcmbeC1.c1,2002,1118:30:00,30 ,       0,2.302222,0.515416,0.708082
sgpcmbeC1.c1,2002,1119:30:00,29 ,       0,1.929743,0.369932,0.505528
sgpcmbeC1.c1,2002,1120:30:00,29 ,       0,0.703549,0.164861,  0.2396
sgpcmbeC1.c1,2002,1121:30:00,29 ,       0,2.556716,0.328506,0.680417
sgpcmbeC1.c1,2002,1122:30:00,27 ,       0,0.477949,0.039915,0.108932
sgpcmbeC1.c1,2002,1123:30:00,28 ,       0,1.455296,0.126726,0.323168