datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,12 0:30:00,16 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,12 1:30:00,17 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,12 2:30:00,17 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,12 3:30:00,17 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,12 4:30:00,17 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,12 5:30:00,19 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,12 6:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,12 7:30:00,30 ,       0, 10.5749,3.828814,2.986198
sgpcmbeC1.c1,2007,12 8:30:00,30 ,2.116103,33.66008,11.74971,8.475062
sgpcmbeC1.c1,2007,12 9:30:00,30 , 2.37505,41.92744,12.88042,10.47351
sgpcmbeC1.c1,2007,1210:30:00,30 ,0.669489,58.14316,15.67655,15.38652
sgpcmbeC1.c1,2007,1211:30:00,30 ,0.510715,61.79806,14.53633,13.59553
sgpcmbeC1.c1,2007,1212:30:00,30 , 0.21462,52.52969,15.36715,15.43237
sgpcmbeC1.c1,2007,1213:30:00,30 ,0.493026,34.11021,13.69628,11.63786
sgpcmbeC1.c1,2007,1214:30:00,30 ,1.435698, 69.1135,14.34787, 14.9715
sgpcmbeC1.c1,2007,1215:30:00,30 ,2.776381,51.40469,12.87771,11.81676
sgpcmbeC1.c1,2007,1216:30:00,30 ,5.012493,26.87908,12.46432,7.458555
sgpcmbeC1.c1,2007,1217:30:00,30 ,       0,8.554728,3.386518,2.514929
sgpcmbeC1.c1,2007,1218:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1219:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1220:30:00,22 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1221:30:00,19 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1222:30:00,18 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1223:30:00,15 ,       0,       0,       0,       0