bed_map dot spec / pass colname suffixes to bed_intersect

[jayhesselberth]

The bed_intersect call in bed_map yields new columns with .y suffixes, causing surprising behavior:

bed_tbl <- tibble::frame_data(
~chrom, ~start, ~end,
"chr1", 100, 250,
"chr2", 250, 500)

signal_tbl <- tibble::frame_data(
~chrom, ~start, ~end, ~value,
"chr1", 100, 250, 10,
"chr1", 150, 250, 20,
"chr2", 250, 500, 500)

bed_map(bed_tbl, signal_tbl, sum = sum(value))
#> Error: object 'value' not found
bed_map(bed_tbl, signal_tbl, sum = sum(value.y))
#> Source: local data frame [2 x 4]
#> 
#>   chrom start   end   sum
#>   <chr> <dbl> <dbl> <dbl>
#> 1  chr1   100   250    30
#> 2  chr2   250   500   500

The way around is to enable passing of suffix values to bed_intersect:

bed_intersect(x, y, suffix.y = '')