save bw files as GRanges in .RObject
save_bw_rda(bw_files_dir, pattern = NULL)
| bw_files_dir | Absolute path of bw or bdg files. Files should end with
extension   | 
    
|---|---|
| pattern | A vector of pattern to replace from the bw or bedgraph file
names. Suitable for long names, can be either a defined pattern or
"default" pattern or NULL.   | 
    
.rda for each bw/ bdg file input
if (FALSE) { save_bw_rda(bw_files_dir=".", pattern="default") }