[R] Error creating named character vectors from column names in data frame.

[Bert Gunter]

I think you have R semantics confused. What do you think

c("a" = "b")

means?

Note that:

> c("a" = "b")
  a
"b"
> a
Error: object 'a' not found


And of course:

class("a") # character
class("b") # character

but this has *nothing* to do with the line immediately above it.

Have you gone through any  basic R tutorials? There are many good ones
on the web.

Cheers,
Bert


Bert Gunter

"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )


On Fri, Oct 7, 2016 at 9:06 AM, Jorge Cimentada <cimentadaj at gmail.com> wrote:
> Hi everyone,
>
> I was hoping someone would explain why this doesn't work.
>
> c("a" = "b") # named character vector
> class("a") # character
> class("b") # character
>
> c(names(mtcars)[1] = names(mtcars[2]) # error
> class(names(mtcars)[1]) # character
> class(names(mtcars)[2]) # character
>
>
> Thanks,
> Jorge Cimentada
>
>         [[alternative HTML version deleted]]
>
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