datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,12 0:30:00,29 ,       0,639.6307,79.06428, 150.839
sgpcmbeC1.c1,2007,12 1:30:00,29 ,       0,717.5196,83.05233,165.8701
sgpcmbeC1.c1,2007,12 2:30:00,28 ,       0,474.1218,75.15779,142.7539
sgpcmbeC1.c1,2007,12 3:30:00,28 ,       0,812.1309,77.75061,175.7249
sgpcmbeC1.c1,2007,12 4:30:00,28 ,       0,852.9177,92.37276,183.2702
sgpcmbeC1.c1,2007,12 5:30:00,28 ,       0,610.0463, 87.4468, 155.141
sgpcmbeC1.c1,2007,12 6:30:00,28 ,       0,532.9708,87.85822,132.8636
sgpcmbeC1.c1,2007,12 7:30:00,29 ,       0,776.3705,129.1821,188.2008
sgpcmbeC1.c1,2007,12 8:30:00,29 ,       0,1105.924,146.2935,252.0178
sgpcmbeC1.c1,2007,12 9:30:00,30 ,       0,1228.212,130.0668,243.6793
sgpcmbeC1.c1,2007,1210:30:00,30 ,       0,749.4499, 112.277,192.1155
sgpcmbeC1.c1,2007,1211:30:00,30 ,       0,912.9731,156.3406,265.2491
sgpcmbeC1.c1,2007,1212:30:00,30 ,       0,1096.388,148.8184,281.7628
sgpcmbeC1.c1,2007,1213:30:00,29 ,       0,546.3375,99.27012,161.9334
sgpcmbeC1.c1,2007,1214:30:00,30 ,       0,858.3354,109.4986,201.4267
sgpcmbeC1.c1,2007,1215:30:00,30 ,       0,567.1036,85.57221,151.5295
sgpcmbeC1.c1,2007,1216:30:00,29 ,       0,431.1917, 88.6315,142.5384
sgpcmbeC1.c1,2007,1217:30:00,29 ,       0,509.0956, 79.7022,133.4015
sgpcmbeC1.c1,2007,1218:30:00,28 ,       0,581.6635,81.86601,150.8512
sgpcmbeC1.c1,2007,1219:30:00,28 ,       0,423.1593,75.71728,135.2231
sgpcmbeC1.c1,2007,1220:30:00,28 ,       0,485.9439,65.23166,132.9441
sgpcmbeC1.c1,2007,1221:30:00,28 ,       0,543.5883,66.04058,145.2572
sgpcmbeC1.c1,2007,1222:30:00,28 ,       0,678.7571,67.16063,145.5152
sgpcmbeC1.c1,2007,1223:30:00,28 ,       0,330.5136,51.41944,88.07548