datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,12 0:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,12 1:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,12 2:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,12 3:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,12 4:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,12 5:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,12 6:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,12 7:30:00,31 ,       0,13.58505,5.842819, 3.43499
sgpcmbeC1.c1,2006,12 8:30:00,31 ,5.399378,44.81319,15.82948,10.31764
sgpcmbeC1.c1,2006,12 9:30:00,31 ,2.047461,53.38924,16.87803,14.75183
sgpcmbeC1.c1,2006,1210:30:00,31 ,0.941219,40.88075,13.11177,11.73448
sgpcmbeC1.c1,2006,1211:30:00,31 ,0.427512,94.86013,21.03893,24.87045
sgpcmbeC1.c1,2006,1212:30:00,31 , 0.62084, 75.9529,23.24874,22.63064
sgpcmbeC1.c1,2006,1213:30:00,31 ,0.673626,65.67904,20.62703,18.04713
sgpcmbeC1.c1,2006,1214:30:00,31 ,1.093202,61.25076,18.85527, 17.3109
sgpcmbeC1.c1,2006,1215:30:00,31 , 3.38639, 50.9812,17.96411, 15.9812
sgpcmbeC1.c1,2006,1216:30:00,31 ,3.186771,34.44417,13.38537,7.637362
sgpcmbeC1.c1,2006,1217:30:00,31 ,       0,14.17485,3.935723,2.921601
sgpcmbeC1.c1,2006,1218:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,1219:30:00,29 ,       0,0.260378,0.008979,0.048351
sgpcmbeC1.c1,2006,1220:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,1221:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,1222:30:00,28 ,       0,0.534523, 0.01909,0.101015
sgpcmbeC1.c1,2006,1223:30:00,29 ,       0,       0,       0,       0