[R] From list to variable name

Hello I am trying to run equations with different combinations of explanatory variables. I have managed to figure out how to generate the different combinations, and am trying to set up equations where I use these combinations. And this is where I am getting stuck. I have searched several R web

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

/message.php?msg_id=1269 Regards, Michelle - Original Message From: Kingsford Jones To: Michelle Greve 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, The r-sig-geo list would be the ideal place

[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