[R-sig-Geo] downsampling a lines shapefile?

[Colin Rundel]

That is odd, it isn't an error that I've seen before. What version of R are you running and can you check what version of plyr and stringr you have installed?

-Colin


On Oct 25, 2011, at 3:11 PM, Nick Matzke wrote:

> Thanks so much!  I've almost gotten rgeos to install, however I'm getting a peculiar error about a (successfully installed) other package, stringr:
> 
> "Error : package 'stringr' does not have a name space"
> 
> ...any idea what that might be about?  Grateful as always!!
> Nick
> 
> 
> PS Full error message below...
> 
> =========================================
> > install.packages("/Users/nick/Desktop/downloads/rgeos", "/Library/Frameworks/R.framework/Resources/library/", NULL, type='source',
> + configure.args="--with-geos-config=/usr/local/bin/geos-config")
> WARNING: ignoring environment value of R_HOME
> Loading ~/.Rprofile...
> Currently viewed PATH:
> /usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/texbin:/Applications/dssp:/Library/Frameworks/PROJ.framework/:/Library/Frameworks/PROJ.framework/Programs:/Library/Frameworks/PROJ.framework/Versions/4.6/Headers:/Library/Frameworks/GDAL.framework/Versions/1.6/Programs:/usr/texbin:/Applications/dssp:/Library/Frameworks/PROJ.framework/:/Library/Frameworks/PROJ.framework/Programs:/Library/Frameworks/PROJ.framework/Versions/4.6/Headers:/Library/Frameworks/GDAL.framework/Versions/1.6/Programs
> * installing *source* package ‘rgeos’ ...
> geos-config: /usr/local/bin/geos-config
> GEOS: 3.2.3
> CPPFLAGS: -DHAVEUNARYUNION -I/usr/local/include
> LIBS: -L/usr/local/lib -lgeos
> configure: creating ./config.status
> config.status: creating src/Makevars
> ** libs
> ** arch - i386
> make: Nothing to be done for `all'.
> ** R
> ** inst
> ** preparing package for lazy loading
> Loading required package: plyr
> Error : package 'stringr' does not have a name space
> ERROR: lazy loading failed for package ‘rgeos’
> * removing ‘/Library/Frameworks/R.framework/Versions/2.10/Resources/library/rgeos’
> Warning message:
> In install.packages("/Users/nick/Desktop/downloads/rgeos", "/Library/Frameworks/R.framework/Resources/library/",  :
>  installation of package '/Users/nick/Desktop/downloads/rgeos' had non-zero exit status
> 
> On 10/25/11 1:32 AM, Roger Bivand wrote:
>> On Mon, 24 Oct 2011, Nick Matzke wrote:
>> 
>>> Hi all,
>>> 
>>> I have a shapefile with a number of line features. I can
>>> load it and plot it. Is there an easy way to downsample or
>>> smooth the shapefile to a coarser resolution?
>> 
>> ?gSimplify in rgeos?
>> 
>> Roger
>> 
>>> 
>>> Thanks so much for your help,
>>> Nick
>>> 
>>> 
>>> 
>> 
> 
> -- 
> ====================================================
> Nicholas J. Matzke
> Ph.D. Candidate, Graduate Student Researcher
> 
> Huelsenbeck Lab
> Center for Theoretical Evolutionary Genomics
> 4151 VLSB (Valley Life Sciences Building)
> Department of Integrative Biology
> University of California, Berkeley
> 
> Graduate Student Instructor, IB200B
> Principles of Phylogenetics: Ecology and Evolution
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> http://phylo.wikidot.com/
> 
> 
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> 
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> -----------------------------------------------------
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> 
> Isaac Asimov (1989). "The Relativity of Wrong." The Skeptical Inquirer, 14(1), 35-44. Fall 1989.
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