Get group names of forecast data

Gets the names of groups in a forecast by inspecting its columns. Wrapper for get_group_cols()

Usage

get_group_names(df)

Arguments

df

A forecast data frame

Value

A character vector of names

Examples

# character(0)
casteval:::get_group_names(data.frame(time=1))
#> character(0)

# c("variable", "scenario")
casteval:::get_group_names(data.frame(time=1, grp_variable=2, grp_scenario=3))
#> [1] "variable" "scenario"