BED format data frame or BED filename, please refer to http://genome.ucsc.edu/FAQ/FAQformat#format1 for details
header
TRUE or FALSE, default to FALSE, indicates whether data.BED file has BED header
...
any parameter need to be passed into read.delim function
Value
RangedData with slot start holding the start position of the feature, slot end holding the end position of the feature, slot names holding the id of the feature, slot space holding the chromosome location where the feature is located. In addition, the following variables are included.
strand
1 for positive strand and -1 for negative strand where the feature is located. Default to 1 if not present in the BED formated data frame