datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,12 0:30:00,28 ,       0,339.8518,28.86175,76.26815
sgpcmbeC1.c1,2005,12 1:30:00,28 ,       0,431.0259,34.12036,93.62174
sgpcmbeC1.c1,2005,12 2:30:00,28 ,       0,349.1394, 30.6369,80.16954
sgpcmbeC1.c1,2005,12 3:30:00,28 ,       0, 281.807,28.36215,67.37301
sgpcmbeC1.c1,2005,12 4:30:00,28 ,       0,218.2823,30.37195, 63.5583
sgpcmbeC1.c1,2005,12 5:30:00,27 ,       0,216.1067,27.76241,58.81104
sgpcmbeC1.c1,2005,12 6:30:00,27 ,       0, 227.054,27.28253,55.95214
sgpcmbeC1.c1,2005,12 7:30:00,27 ,       0,221.3485,29.58151,59.28259
sgpcmbeC1.c1,2005,12 8:30:00,26 ,       0,212.1877, 32.6925,55.41582
sgpcmbeC1.c1,2005,12 9:30:00,27 ,       0,137.1213,27.18262,47.29768
sgpcmbeC1.c1,2005,1210:30:00,28 ,       0,104.8051,23.80384,35.53245
sgpcmbeC1.c1,2005,1211:30:00,29 ,       0,267.6256,28.72305,57.09311
sgpcmbeC1.c1,2005,1212:30:00,29 ,       0,344.6407,35.96693,75.30942
sgpcmbeC1.c1,2005,1213:30:00,29 ,       0,244.1711,37.77383,74.16464
sgpcmbeC1.c1,2005,1214:30:00,28 ,       0,266.0643, 43.4381,79.77494
sgpcmbeC1.c1,2005,1215:30:00,28 ,       0,301.7205,43.82373, 84.7682
sgpcmbeC1.c1,2005,1216:30:00,28 ,0.001274,709.4996,61.09076,144.6212
sgpcmbeC1.c1,2005,1217:30:00,28 ,       0,213.2134,38.63336, 67.3845
sgpcmbeC1.c1,2005,1218:30:00,28 , 0.00047,261.5489,41.05042,73.14066
sgpcmbeC1.c1,2005,1219:30:00,28 ,0.000863,276.7359,45.86595,84.70284
sgpcmbeC1.c1,2005,1220:30:00,28 ,       0,299.8918,39.67743,79.99529
sgpcmbeC1.c1,2005,1221:30:00,28 ,       0,323.7334,33.52321,69.32735
sgpcmbeC1.c1,2005,1222:30:00,28 ,       0,369.6665,27.32609, 72.2268
sgpcmbeC1.c1,2005,1223:30:00,28 ,       0,305.0045,27.64569,69.06112