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 ,       0,2.936108,0.206346,0.544212
sgpcmbeC1.c1,2002,11 7:30:00,30 ,0.160044,49.37798,15.81551,15.00289
sgpcmbeC1.c1,2002,11 8:30:00,30 ,0.047134,213.0808,109.1425,71.04474
sgpcmbeC1.c1,2002,11 9:30:00,30 ,0.088745,378.1867,218.4564,137.3198
sgpcmbeC1.c1,2002,1110:30:00,30 ,0.043762,507.5093,305.5581,182.5967
sgpcmbeC1.c1,2002,1111:30:00,30 , 0.21125,588.0547,354.8615,228.9695
sgpcmbeC1.c1,2002,1112:30:00,30 ,0.478256,602.9489,351.6017,234.3475
sgpcmbeC1.c1,2002,1113:30:00,30 ,0.114265,554.5243,317.5345,209.0466
sgpcmbeC1.c1,2002,1114:30:00,30 ,0.042458,448.1887,281.7197,162.1253
sgpcmbeC1.c1,2002,1115:30:00,30 ,0.115385,294.5877,182.0714, 99.6015
sgpcmbeC1.c1,2002,1116:30:00,30 ,       0,116.2686,63.25813,39.42097
sgpcmbeC1.c1,2002,1117:30:00,30 ,0.244768,7.907739,2.938083,2.406496
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