R rename slect columns code example

Example 1: r rename columns

library(plyr)
rename(d, c("beta"="two", "gamma"="three"))
#>   alpha two three
#> 1     1   4     7
#> 2     2   5     8
#> 3     3   6     9

Example 2: r: rename a column

colnames(df)[which(names(df) == "columnName")] <- "newColumnName"