* BR_ Flux_ Preprocessing_ lamost_ apogee_ between_ 5_ 50.zip.001 to BR_ Flux_ Preprocessing_ lamost ...
_ apogee_ between_ 5_ 50.zip.003 are zips of the reference spectral data (5<=snrg<50) ...
* BR_ Flux_ Preprocessing_ lamost_ apogee_ above_ 50.zip.001 to BR_ Flux_ Preprocessing_ lamost_ apogee ...
_ above_ 005 are zips of the reference spectral data set (snrg>=50) ...
* X_ test_ above_ 50. zip and X_ test_ between_ 5_ 50.zip are zips of test data set.