I have a data. frame to which you want to change the names to some of their
columns.

For example:

> seba <- data.frame ('constant' = 3, 'numbers' = 1: 10, 'letters' = LETTERS
[1:10], otros = 2:11)

List their names:

> names (Seba)
[1] "constant" "numbers" "letters"

I want to rename c the column called constant and b the column
called numbers.

I do not know in which order appear names.

How could do it?

Thanks in advance,

Sebastian.

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