datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,10 0:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,10 1:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,10 2:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,10 3:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,10 4:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,10 5:30:00,22 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,10 6:30:00,31 ,       0,11.17781, 4.47849,3.225245
sgpcmbeC1.c1,2005,10 7:30:00,31 ,5.574488,52.40336,15.98729,9.826676
sgpcmbeC1.c1,2005,10 8:30:00,31 ,3.622658,49.13162,16.23835,12.51987
sgpcmbeC1.c1,2005,10 9:30:00,31 ,1.659734,71.93851,20.87525, 18.2967
sgpcmbeC1.c1,2005,1010:30:00,31 ,1.069882,90.97126,32.30801,30.43507
sgpcmbeC1.c1,2005,1011:30:00,31 ,0.578902,102.9199,23.96855,27.68118
sgpcmbeC1.c1,2005,1012:30:00,31 ,0.619839,150.7447,35.81943,40.52662
sgpcmbeC1.c1,2005,1013:30:00,31 ,0.900635,98.06564,30.91219,31.31148
sgpcmbeC1.c1,2005,1014:30:00,31 ,0.773493,116.1141, 30.0596,31.93346
sgpcmbeC1.c1,2005,1015:30:00,31 ,1.416286,   119.8,21.71984,25.54746
sgpcmbeC1.c1,2005,1016:30:00,31 ,2.954746,84.02624,18.22293,18.38175
sgpcmbeC1.c1,2005,1017:30:00,31 ,2.892615,30.14059,12.73775,6.463264
sgpcmbeC1.c1,2005,1018:30:00,23 ,       0,11.49544,0.909166,2.444004
sgpcmbeC1.c1,2005,1019:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,1020:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,1021:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,1022:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,1023:30:00,22 ,       0,       0,       0,       0