EVOLUTION-MANAGER
Edit File: replacement.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>R: Replace cell values or layers of a Raster* object</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="stylesheet" type="text/css" href="R.css" /> </head><body> <table width="100%" summary="page for replacement {raster}"><tr><td>replacement {raster}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>Replace cell values or layers of a Raster* object</h2> <h3>Description</h3> <p>You can set values of a Raster* object, when <code>i</code> is a vector of cell numbers, a Raster*, Extent, or Spatial* object. </p> <p>These are shorthand methods that work best for relatively small Raster* objects. In other cases you can use functions such as <code><a href="calc.html">calc</a> and <a href="rasterize.html">rasterize</a></code>. </p> <h3>Methods</h3> <p><code>x[i] <- value</code> </p> <p><code>x[i,j] <- value</code> </p> <table summary="Rd table"> <tr> <td style="text-align: right;"> </td><td style="text-align: left;"> <b>Arguments:</b> </td><td style="text-align: left;"> </td> </tr> <tr> <td style="text-align: right;"> </td><td style="text-align: left;"> <code>x</code> </td><td style="text-align: left;"> a Raster* object </td> </tr> <tr> <td style="text-align: right;"> </td><td style="text-align: left;"> <code>i</code> </td><td style="text-align: left;"> cell number(s), row number(s), Extent, Spatial* object </td> </tr> <tr> <td style="text-align: right;"> </td><td style="text-align: left;"> <code>j</code> </td><td style="text-align: left;"> columns number(s) (only available if i is (are) a row number(s)) </td> </tr> <tr> <td style="text-align: right;"> </td><td style="text-align: left;"> <code>value</code> </td><td style="text-align: left;"> new cell value(s) </td> </tr> <tr> <td style="text-align: right;"> </td> </tr> </table> <h3>See Also</h3> <p><a href="calc.html">calc</a>, <a href="rasterize.html">rasterize</a></p> <h3>Examples</h3> <pre> r <- raster(ncol=10, nrow=5) values(r) <- 1:ncell(r) * 2 r[1,] <- 1 r[,1] <- 2 r[1,1] <- 3 s <- stack(r, sqrt(r)) s[s<5] <- NA </pre> <hr /><div style="text-align: center;">[Package <em>raster</em> version 3.3-13 <a href="00Index.html">Index</a>]</div> </body></html>