[R] change column names of several data frames

[Antonio, Fabio Di Narzo]

Henrik Parn <henrik.parn <at> bio.ntnu.no> writes:

>
> Dear all,
>
> I have several data frames for which I want to change the column names.
>
> Example data:
> data.1 <- data.frame(x1 = rnorm(5))
> data.2 <- data.frame(x1 = rnorm(5))

Use lists. I.e.:
data <- list()
data[[1]] <- data.frame(x1 = rnorm(5))
data[[2]] <- data.frame(x1 = rnorm(5))

> .
> .
>
> What I want to achieve:
> names(data.1) <- "y1"
> names(data.1) <- "y1"
> .
> .
>
> Is it possible to achieve this with a loop or any of the apply-functions?
>
> Some (out of several...) unsuccessful attempts using for-loops instead:
> for(i in 1:2)
> names(get(paste("data", i, sep = "."))) <- "y1"
>
> for(i in 1:2)
> assign(paste("data", i, sep="."), names(get(paste("natal", i, sep =
> "."))) <- "y1")
>
> Thanks in advance!
>
> / Henrik Pärn
>
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>



-- 
Antonio, Fabio Di Narzo
Ph.D. student at
Department of Statistical Sciences
University of Bologna, Italy