datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,11 0:30:00,11 ,       0,137.3689,22.46306,43.21142
sgpcmbeC1.c1,2007,11 1:30:00,11 ,       0,257.9927,31.72088,77.04912
sgpcmbeC1.c1,2007,11 2:30:00,11 ,       0,442.0696,57.66436,136.5169
sgpcmbeC1.c1,2007,11 3:30:00,11 ,       0,478.6799,60.91227,146.9362
sgpcmbeC1.c1,2007,11 4:30:00,11 ,       0,470.9595,62.25321, 148.274
sgpcmbeC1.c1,2007,11 5:30:00,11 ,       0,401.4308,47.20677,121.9476
sgpcmbeC1.c1,2007,11 6:30:00,11 ,       0,268.0059,33.47511,82.44097
sgpcmbeC1.c1,2007,11 7:30:00,11 ,       0,264.5211,34.36209,82.57993
sgpcmbeC1.c1,2007,11 8:30:00,11 ,       0,303.0201,37.82958,93.72646
sgpcmbeC1.c1,2007,11 9:30:00,11 ,       0,309.5379,30.97659,92.64727
sgpcmbeC1.c1,2007,1110:30:00,11 ,       0,276.3822,28.04551,82.48201
sgpcmbeC1.c1,2007,1111:30:00,11 ,0.027222,116.6075,13.17201,34.52791
sgpcmbeC1.c1,2007,1112:30:00,11 ,0.023989,138.6778,19.04016,42.18297
sgpcmbeC1.c1,2007,1113:30:00,11 ,0.020714,91.55835,20.97344,34.50752
sgpcmbeC1.c1,2007,1114:30:00,11 ,0.044112,194.1085,29.26045,58.22281
sgpcmbeC1.c1,2007,1115:30:00,11 ,0.006625,354.4635,43.08325,105.3525
sgpcmbeC1.c1,2007,1116:30:00,12 ,0.147027,335.6057,43.91782,98.46899
sgpcmbeC1.c1,2007,1117:30:00,12 ,0.117996,252.6363,25.59544,71.73478
sgpcmbeC1.c1,2007,1118:30:00,12 ,0.438474, 206.031, 22.3671,58.35162
sgpcmbeC1.c1,2007,1119:30:00,12 ,0.280244,211.6089,28.27615,58.90823
sgpcmbeC1.c1,2007,1120:30:00,12 ,       0,132.9816,18.33889,37.30466
sgpcmbeC1.c1,2007,1121:30:00,12 ,       0, 302.428,40.49995,85.61459
sgpcmbeC1.c1,2007,1122:30:00,12 ,       0,316.7777,53.99604,99.87647
sgpcmbeC1.c1,2007,1123:30:00,12 ,       0,329.0231,65.07018,111.7012