R help - Jun 2012 - Conditioned Latin Hypercube Sampling within determined distance

Hi all,

I am a begginer in R and I have been trying to use the Conditioned Latin
Hypercube to choose sample points only in areas close to roads due to the
difficult thorough access in the study area. I could use a code to create
the points throughout the area, but I need to create a code to make the R
only comes up with points close to this road. I've been using the packages
"raster", "shapefile", "clhs", "proj4"
and "rgdal" and I have the shapefiles
of the road, the raster of distance from the road, and so forth.

Thanks for any kind of help. 

Sergio

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So what have you tried so far?

The posting guidelines asks for code and, where possible, data.  
Have a look at ?dput for a possible way to dupply data.

John Kane
Kingston ON Canada

> -----Original Message-----
> From: shenrike at hotmail.com
> Sent: Wed, 20 Jun 2012 07:32:21 -0700 (PDT)
> To: r-help at r-project.org
> Subject: [R] Conditioned Latin Hypercube Sampling within determined
> distance
> 
> Hi all,
> 
> I am a begginer in R and I have been trying to use the Conditioned Latin
> Hypercube to choose sample points only in areas close to roads due to the
> difficult thorough access in the study area. I could use a code to create
> the points throughout the area, but I need to create a code to make the R
> only comes up with points close to this road. I've been using the
> packages
> "raster", "shapefile", "clhs",
"proj4" and "rgdal" and I have the
> shapefiles
> of the road, the raster of distance from the road, and so forth.
> 
> Thanks for any kind of help.
> 
> Sergio
> 
> --
> View this message in context:
>
http://r.789695.n4.nabble.com/Conditioned-Latin-Hypercube-Sampling-within-determined-distance-tp4633974.html
> Sent from the R help mailing list archive at Nabble.com.
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
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Sorry that should be 'supply' data

John Kane
Kingston ON Canada

> -----Original Message-----
> From: shenrike at hotmail.com
> Sent: Wed, 20 Jun 2012 10:53:52 -0700 (PDT)
> To: r-help at r-project.org
> Subject: Re: [R] Conditioned Latin Hypercube Sampling within determined
> distance
> 
> Hi John Kane,
> 
> I have created a shapefile for the road, I have the rasters that I want
> to
> use for creating the cLHS and I have created the points in the area, but
> I
> don't know how to condition them to be created within a certain
distance
> from the road. I didn't understand why you meant dupply data.
> 
> Thank you
> 
> Sergio
> 
> --
> View this message in context:
>
http://r.789695.n4.nabble.com/Conditioned-Latin-Hypercube-Sampling-within-determined-distance-tp4633974p4634008.html
> Sent from the R help mailing list archive at Nabble.com.
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
____________________________________________________________
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