datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,12 0:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2005,12 1:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2005,12 2:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2005,12 3:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2005,12 4:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2005,12 5:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2005,12 6:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2005,12 7:30:00,3 ,0.000581,0.000725,0.000633,0.000079
sgpcmbeC1.c1,2005,12 8:30:00,31 ,0.000427,0.999868,0.276338,0.369881
sgpcmbeC1.c1,2005,12 9:30:00,31 ,0.000318,0.999957,0.420147,0.446705
sgpcmbeC1.c1,2005,1210:30:00,31 ,9.363E-7,       1,0.411711,0.466707
sgpcmbeC1.c1,2005,1211:30:00,31 ,0.000026,       1,0.420301,0.448883
sgpcmbeC1.c1,2005,1212:30:00,31 ,7.146E-6,       1,0.436955,0.448138
sgpcmbeC1.c1,2005,1213:30:00,31 , 0.00001,       1,0.396193,0.432766
sgpcmbeC1.c1,2005,1214:30:00,31 ,7.088E-6,       1,0.358288,0.454359
sgpcmbeC1.c1,2005,1215:30:00,31 ,9.205E-7,       1,0.375899,0.463986
sgpcmbeC1.c1,2005,1216:30:00,31 ,5.565E-7,0.978133, 0.30475,0.394187
sgpcmbeC1.c1,2005,1217:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2005,1218:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2005,1219:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2005,1220:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2005,1221:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2005,1222:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2005,1223:30:00,0 ,       .,       .,       .,       .