[R] GPS handling libraries or (String manipulation)

[Gabor Grothendieck]

On Wed, Mar 7, 2012 at 11:28 AM, Alaios <alaios at yahoo.com> wrote:
> Dear all,
> I would like to ask you if R has a library that can work with different GPS formats
>
> For example
> I have a string of this format
>
> N50° 47.513 E006° 03.985
> and I would like to convert to GPS decimal format.
>
> that means for example converting the part N50° 47.513
> to 50 + 47/60 + 513/3600.
>
> Is it possible to do that with R?
> What is the name of such a library?
>

Use strapply to extract the digits and convert them to numeric
followed by matrix multiplication to apply the formula:

library(gsubfn)
x <- "N50° 47.513"

c(1, 1/60, 1/3600) %*% strapply(x, "\\d+", as.numeric, simplify = TRUE)


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