datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,11 0:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,11 1:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,11 2:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,11 3:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,11 4:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,11 5:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,11 6:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,11 7:30:00,30 ,       0,23.72691,6.943234,  9.0781
sgpcmbeC1.c1,2003,11 8:30:00,30 ,0.009165,  94.966,22.02082,25.96656
sgpcmbeC1.c1,2003,11 9:30:00,30 ,0.056692,73.53485, 25.9672,24.52667
sgpcmbeC1.c1,2003,1110:30:00,30 ,0.083782,198.1989,29.71778,44.12363
sgpcmbeC1.c1,2003,1111:30:00,30 ,0.072079,165.7829,26.41796,40.97251
sgpcmbeC1.c1,2003,1112:30:00,30 ,0.052226,207.3298,42.04032,67.00068
sgpcmbeC1.c1,2003,1113:30:00,30 ,       0,152.8452,39.28425,46.60532
sgpcmbeC1.c1,2003,1114:30:00,30 , 0.00276,165.2736,40.54719,46.83026
sgpcmbeC1.c1,2003,1115:30:00,30 ,0.021541,94.70176, 27.9308,28.57153
sgpcmbeC1.c1,2003,1116:30:00,30 ,       0,48.55199, 21.1739,19.87191
sgpcmbeC1.c1,2003,1117:30:00,30 ,       0,8.710373,1.493042, 2.00936
sgpcmbeC1.c1,2003,1118:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,1119:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,1120:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,1121:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,1122:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,1123:30:00,27 ,       0,       0,       0,       0