datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,12 0:30:00,30 ,       0,400.2818,28.89043,81.86028
sgpcmbeC1.c1,2003,12 1:30:00,30 ,       0,158.0821,18.50647,41.09856
sgpcmbeC1.c1,2003,12 2:30:00,29 ,       0,262.1727,  21.708,55.78607
sgpcmbeC1.c1,2003,12 3:30:00,29 ,       0,200.1961,15.60843,39.47765
sgpcmbeC1.c1,2003,12 4:30:00,29 ,       0,180.4618,18.63486,40.64259
sgpcmbeC1.c1,2003,12 5:30:00,29 ,       0,155.7996,21.94501,43.07197
sgpcmbeC1.c1,2003,12 6:30:00,28 ,       0,796.5353,40.64737,149.7784
sgpcmbeC1.c1,2003,12 7:30:00,28 ,       0,861.2627,43.28677,163.0715
sgpcmbeC1.c1,2003,12 8:30:00,29 ,       0,559.9033,41.89228, 118.308
sgpcmbeC1.c1,2003,12 9:30:00,31 ,       0,333.8194,21.96429,63.73479
sgpcmbeC1.c1,2003,1210:30:00,31 ,       0,309.5628,32.68425, 78.0864
sgpcmbeC1.c1,2003,1211:30:00,31 ,       0,1041.533,56.82139,193.3579
sgpcmbeC1.c1,2003,1212:30:00,31 ,       0,941.2943,53.05129,173.1884
sgpcmbeC1.c1,2003,1213:30:00,31 ,       0,944.1489,50.04005,171.8956
sgpcmbeC1.c1,2003,1214:30:00,31 ,       0,622.2606,36.74815, 114.079
sgpcmbeC1.c1,2003,1215:30:00,31 ,       0,311.0635,25.70565,62.23925
sgpcmbeC1.c1,2003,1216:30:00,31 ,       0,283.8334,23.72074,56.89771
sgpcmbeC1.c1,2003,1217:30:00,31 ,       0,203.8247,23.60681,52.67348
sgpcmbeC1.c1,2003,1218:30:00,31 ,       0,966.4244,50.85408,181.7461
sgpcmbeC1.c1,2003,1219:30:00,31 ,       0,1258.085,77.35058,242.3911
sgpcmbeC1.c1,2003,1220:30:00,31 ,       0,1566.864,76.17022,284.5591
sgpcmbeC1.c1,2003,1221:30:00,31 ,       0,640.9484,40.01212,119.8295
sgpcmbeC1.c1,2003,1222:30:00,31 ,       0,540.8434,34.91196,104.7514
sgpcmbeC1.c1,2003,1223:30:00,31 ,       0,465.1841,28.70281,88.04318