findVariantFile: Get a vcf filename given a HTSeqGenie directory
Description
Get the filename of the variant file
Usage
findVariantFile(save_dir)
Arguments
dir_path
A character string containing a dir path
Value
A character vector containing an existing filename, stops if 0 or more than 1
Details
Depending on the variant caller used and the version of
VariantAnotation used to create the file a file might have the
ending vcf.gz, vcf.bgz. To function hides all this mess.