Re: [R] Extracting xy from raster based on raster value

/message.php?msg_id=1269 Regards, Michelle - Original Message From: Kingsford Jones kingsfordjo...@gmail.com To: Michelle Greve michelle_gr...@yahoo.com Cc: R-help@r-project.org Sent: Sunday, February 22, 2009 7:32:58 PM Subject: Re: [R] Extracting xy from raster based on raster value Hi Michelle

[R] Extracting xy from raster based on raster value

I have a raster (which I called glc), which I read into R as a raster with raster.create.from.file from the raster package (R-forge). Values in glc range between 1 and 27 (whole numbers only). I'd like to extract all cells with a value of 1 to create a new raster with only the cells that have a

Re: [R] Extracting xy from raster based on raster value

Hi Michelle, The r-sig-geo list would be the ideal place for this question since the authors of 'raster' would be likely to see it. I haven't used the raster package before, but this seems to work: #install.packages(raster, repos=http://R-Forge.R-project.org;) r - raster() r - setValues(r,