[R] strsplit on comma, with a trailing comma in input

[Gabor Grothendieck]

Try appending another comma:

strsplit(paste("a,,b,", ",", sep = ""), ",")


On Dec 3, 2007 6:22 PM, dankelley <Dan.Kelley at dal.ca> wrote:
>
> I have a comma-separated data file in which trailing commas sometimes occur.
> I am using strsplit to extract the data from this file, and it seems great
> except in cases with trailing comma characters.
>
> The example below illustrates.  What I'd like is to get a fourth element in
> the answer, being an empty string just like the second element.  Is there a
> way I can express my patter (or perhaps specify perl or extended) to get
> that?
>
>
> > strsplit("a,,b,", ",")[[1]]
> [1] "a" ""  "b"
>
>
>
> --
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