[R] Fwd: Converting Lat Lon data in coordinates in R

MacQueen, Don macqueen1 at llnl.gov
Fri Jul 25 22:13:09 CEST 2014

The sp package has what you need.

spTransform() will convert from lat/lon to other coordinate systems.

char2dms() will convert lat/lon coordinates formatted as you have them
into numeric lat/lon values. You may wish to use
  as.numeric( char2dms(  [your data] ) )

It will take some effort to get your data structured so that spTransform()
will work with I.

And I suggest asking further questions on r-sig-geo.


Don MacQueen

Lawrence Livermore National Laboratory
7000 East Ave., L-627
Livermore, CA 94550

On 7/24/14, 11:11 PM, "Suparna Mitra" <suparna.mitra.sm at gmail.com> wrote:

>​Can anybody please let me know
> how can I convert Lat/Lon data in coordinates in R. I was trying to use
>the rgdal package
>​ and proj4 package​
>. But being bit confused how to use S or N information.
>​and degree min second information.
>Any example help will be great.​
>My data looks like:
>  Latitude Longitude  22º54'57"S 47º08'50"W  22º49’38’’S 47º03’49’’W
>22º54'13"S 47º01'08"W  22º50'39"S 47º05'47"W  22º49'10"S 47º03'34"W
>3º5'47"S 59º59'24"W  2º55'47"S 59°58'32"W  40º49’20’’N 77º49’58’’W
> ​Thanks,
>	[[alternative HTML version deleted]]

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