A character vector, indicating which directories have to be merged
outdir
A character string indicating the output directory (which must exist)
prepend_str
A character string, containing a prefix going to be appended on all output result files
Value
Nothing
Details
Merges coverage objects, usually SipleRleLists, in a tree-reduce
fashion. The coverage object dynamically switches to a SimpleIntegerList,
once the data becomes too dense.