get PlySummarizedExperiment grouping Variables

like in dplyr::group_vars() will get character strings for groupings with the exection of the return value being a list for each grouped context

Usage

# S3 method for class 'PlySummarizedExperiment'
group_vars(x)

Arguments

x

PlySummarizedExperiment

Value

NULL or list containing names of grouping columns

Examples

out <- group_by(se_simple, rows(direction))
group_vars(out)
#> $row_groups
#> [1] "direction"
#> 
#> $col_groups
#> character(0)
#>