firstEndPerGroup {ORFik} | R Documentation

## Get first end per granges group

### Description

grl must be sorted, call ORFik:::sortPerGroup if needed

### Usage

    firstEndPerGroup(grl, keep.names = TRUE)

### Arguments

`grl` | a `GRangesList`
`keep.names` | a boolean, keep names or not, default: (TRUE)

### Value

a Rle(keep.names = T), or integer vector(F)

### Examples

    gr_plus <- GRanges(seqnames = c("chr1", "chr1"),
                       ranges = IRanges(c(7, 14), width = 3),
                       strand = c("+", "+"))
    gr_minus <- GRanges(seqnames = c("chr2", "chr2"),
                        ranges = IRanges(c(4, 1), c(9, 3)),
                        strand = c("-", "-"))
    grl <- GRangesList(tx1 = gr_plus, tx2 = gr_minus)
    firstEndPerGroup(grl)

[Package ORFik version 1.12.13 Index]