Update mix.R

* R/mix.R(presc.single): Export

* NAMESPACE: Add exports

NAMESPACE

@@ -2,4 +2,5 @@
 
 export(mb.do)
 export(mb.prep)
+export(presc.single)
 export(sw.do)

R/mix.R

@@ -317,6 +317,7 @@ v<-function(fn_data,stgs_alist,wd,fn_cmpd_list,mode,readMethod="mzR",archdir="ar
 ##' @param nm_arch Archive prefix.
 ##' @return result of RMB_EIC_Prescreen
 ##' @author Todor Kondić
+##' @export
 presc.single <- function(fn_data,stgs_alist,wd,mode,fn_cmpd_l,ppm_lim_fine=10,EIC_limit=0.001,nm_arch="archive") {
     gen_stgs_and_load(fn_data,stgs_alist,wd)