FUNCTION dustem_initialize_internal_sed,Nsed;initializes an SED in the !dustem_data internal formatsed={instru_names:replicate('',Nsed),filt_names:replicate('',Nsed),wav:replicate(la_undef(5),Nsed),values:replicate(la_undef(5),Nsed),sigma:replicate(la_undef(5),Nsed)}RETURN,sedEND