Get the chromosomes of loci in a gen_tibble

Extract the loci chromosomes from a gen_tibble (or directly from its genotype column).

Usage

loci_chromosomes(.x, .col = "genotypes", ...)

# S3 method for class 'tbl_df'
loci_chromosomes(.x, .col = "genotypes", ...)

# S3 method for class 'vctrs_bigSNP'
loci_chromosomes(.x, .col = "genotypes", ...)

Arguments

.x

a gen_tibble, or a vector of class vctrs_bigSNP (usually the genotype column of a gen_tibble object).

.col

the column to be used when a tibble (or grouped tibble is passed directly to the function). This defaults to "genotypes" and can only take that value. There is no need for the user to set it, but it is included to resolve certain tidyselect operations.

...

currently unused.

Value

a character vector of chromosomes

Examples

example_gt <- load_example_gt("gen_tbl")
example_gt %>% loci_chromosomes()
#> [1] chr1 chr1 chr1 chr1 chr2 chr2
#> Levels: chr1 chr2