[R] Add qoutation marks and combine values in a vector

[Gabor Grothendieck]

Use dQuote.  Assuming you have a data frame with the column
as factors:

DF <- data.frame(x = letters)  # test data
levels(DF$x) <- dQuote(levels(DF$x))


On 4/25/06, Jerry Pressnell <jpressnell at westnet.com.au> wrote:
> I wish to place quotation marks around each element of the following
> list;
>
>             X1
> 1  Label 1
> 2  Label 2
> 3  Label 3
> 4  Label 4
>
> and combine the values in the following format for use in another
> function;
>
> c("Label 1","Label 2","Label 3","Label 4")
>
> Many thanks,
>
> Jerry
>
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