datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,12 0:30:00,29 ,       0,2.609236,0.868875,0.867117
sgpcmbeC1.c1,2006,12 1:30:00,25 ,       0, 2.54981,0.838312,0.800606
sgpcmbeC1.c1,2006,12 2:30:00,28 ,       0, 2.44859,0.873641,0.833397
sgpcmbeC1.c1,2006,12 3:30:00,27 ,       0,2.455726,0.807337,0.848268
sgpcmbeC1.c1,2006,12 4:30:00,26 ,       0,2.445571,0.815099,0.895754
sgpcmbeC1.c1,2006,12 5:30:00,27 ,       0, 2.89371,0.970387, 0.95943
sgpcmbeC1.c1,2006,12 6:30:00,30 ,       0,2.585673,0.629206,0.839727
sgpcmbeC1.c1,2006,12 7:30:00,31 ,0.000353, 10.2437, 2.51044,2.985703
sgpcmbeC1.c1,2006,12 8:30:00,31 ,0.149868,124.3182,41.84751,44.84727
sgpcmbeC1.c1,2006,12 9:30:00,31 ,0.032421,277.8135, 117.874,111.0713
sgpcmbeC1.c1,2006,1210:30:00,31 ,0.078154,402.4033,185.7327,173.7534
sgpcmbeC1.c1,2006,1211:30:00,31 , 0.00333,478.3689,236.0253,202.5298
sgpcmbeC1.c1,2006,1212:30:00,31 ,0.117119, 507.868,257.3541,197.3681
sgpcmbeC1.c1,2006,1213:30:00,31 ,0.034279,455.6074,240.1777,191.1691
sgpcmbeC1.c1,2006,1214:30:00,31 ,       0,360.9277,196.2943,151.0043
sgpcmbeC1.c1,2006,1215:30:00,31 ,       0,222.6686,115.5512,88.60059
sgpcmbeC1.c1,2006,1216:30:00,31 ,       0,74.31485,36.09078,28.98893
sgpcmbeC1.c1,2006,1217:30:00,31 ,       0, 3.26967,1.287894,0.941193
sgpcmbeC1.c1,2006,1218:30:00,31 ,       0,2.497611,0.891855,0.939079
sgpcmbeC1.c1,2006,1219:30:00,29 ,       0, 2.68721,0.942003,0.983517
sgpcmbeC1.c1,2006,1220:30:00,29 ,       0,2.564688,0.931824,0.857188
sgpcmbeC1.c1,2006,1221:30:00,27 ,       0,2.755331,0.862184,0.871613
sgpcmbeC1.c1,2006,1222:30:00,28 ,       0, 2.67102,0.749599,0.828439
sgpcmbeC1.c1,2006,1223:30:00,29 ,       0,2.703951,0.917408,0.926449