Make all names in data.frame lower case

Tests are also performed so that all column names will stay unique!

lownames(df)

Arguments

df	A data.frame, possibly with some names with capital letters

Value

df is returned unchanged, except that capital letters in names are changed to lower case.

Examples

df <- data.frame(Hello = 1:10, World = 1:10)
lownames(df)
#>    hello world
#> 1      1     1
#> 2      2     2
#> 3      3     3
#> 4      4     4
#> 5      5     5
#> 6      6     6
#> 7      7     7
#> 8      8     8
#> 9      9     9
#> 10    10    10