rename: Rename columns
In poorman: A Poor Man's Dependency Free Recreation of 'dplyr'

Description Usage Arguments Value Examples

rename() changes the names of individual variables using new_name = old_name syntax. rename_with() renames columns using a function.

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rename(.data, ...)

rename_with(.data, .fn, .cols = everything(), ...)

`.data`	A `data.frame`
`...`	For `rename()`: comma separated key-value pairs in the form of `new_name = old_name` to rename selected variables. For `rename_with()`: additional arguments passed onto `.fn`.
`.fn`	A `function()` used to transform the selected `.cols`. Should return a character vector the same length as the input.
`.cols`	Columns to rename; defaults to all columns.

A data.frame with the following properties:

Rows are not affected.
Column names are changed; column order is preserved.
data.frame attributes are preserved.
Groups are updated to reflect new names.

rename(mtcars, MilesPerGallon = mpg)
rename(mtcars, Cylinders = cyl, Gears = gear)
mtcars %>% rename(MilesPerGallon = mpg)

rename_with(mtcars, toupper)
rename_with(mtcars, toupper, starts_with("c"))