datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,12 0:30:00,31 ,       0, 3.84361,0.391307,0.875621
sgpcmbeC1.c1,2006,12 1:30:00,29 ,       0,3.637268,0.506147,1.006333
sgpcmbeC1.c1,2006,12 2:30:00,29 ,       0,3.035431,0.471913, 0.82751
sgpcmbeC1.c1,2006,12 3:30:00,30 ,       0, 17.2927,1.135013,3.268567
sgpcmbeC1.c1,2006,12 4:30:00,29 ,       0,8.084576, 0.66615,1.621778
sgpcmbeC1.c1,2006,12 5:30:00,30 ,       0,8.851357,0.746704,1.769175
sgpcmbeC1.c1,2006,12 6:30:00,30 ,       0,3.893681,0.474692,1.047414
sgpcmbeC1.c1,2006,12 7:30:00,31 ,       0,18.84283,3.648506,5.152399
sgpcmbeC1.c1,2006,12 8:30:00,28 ,0.132602,43.37727,11.88326,12.57709
sgpcmbeC1.c1,2006,12 9:30:00,29 , 0.39489,41.61364,10.61885,10.02538
sgpcmbeC1.c1,2006,1210:30:00,28 ,1.915026,49.83691,10.65957,11.27003
sgpcmbeC1.c1,2006,1211:30:00,29 ,0.560149,44.53183, 9.89115,9.636725
sgpcmbeC1.c1,2006,1212:30:00,29 ,0.767002,76.44811,14.76039,15.35185
sgpcmbeC1.c1,2006,1213:30:00,29 ,1.283871,48.39909,11.89106,10.14444
sgpcmbeC1.c1,2006,1214:30:00,28 , 1.77769,35.66864,10.84998, 9.12888
sgpcmbeC1.c1,2006,1215:30:00,25 ,0.852195,45.19799,14.49524,10.43485
sgpcmbeC1.c1,2006,1216:30:00,24 ,2.538327,57.35639, 12.6327, 12.4575
sgpcmbeC1.c1,2006,1217:30:00,31 ,       0,8.463146,3.010747,2.757681
sgpcmbeC1.c1,2006,1218:30:00,31 ,       0,11.35538,1.045926,2.848229
sgpcmbeC1.c1,2006,1219:30:00,30 ,       0,7.428492,  0.8556,2.121855
sgpcmbeC1.c1,2006,1220:30:00,29 ,       0,5.782518,0.732167,1.595719
sgpcmbeC1.c1,2006,1221:30:00,28 ,       0,4.269878,0.672754,1.300858
sgpcmbeC1.c1,2006,1222:30:00,30 ,       0,4.950418,0.720175,1.375917
sgpcmbeC1.c1,2006,1223:30:00,31 ,       0,5.356044,0.544886,1.221769