Hello, I'd like to make some correlation matrix for raster maps in R. <br>I tried to <br clear="all">> map1<-readRAST6("lageado_10k_fisher_K_15x15")<br>> map2<-readRAST6("lageado_10k_fisher_K_25x25")
<br>> cor(map1,map2)<br>Error: is.atomic(y) is not TRUE<br><br>What is my mistake? I can' make cor() with SpatialGridDataFrame?<br>Can I make it with several maps at once?<br><br>BTW, the maps have the same size, resolution, etc.
<br>thanks<br><br>Carlos<br><br><br>-- <br>+-----------------------------------------------------------+<br> Carlos Henrique Grohmann - Guano <br> Visiting Researcher at Kingston University London - UK<br>
Geologist M.Sc - Doctorate Student at IGc-USP - Brazil<br>Linux User #89721 - carlos dot grohmann at gmail dot com<br>+-----------------------------------------------------------+<br>_________________<br>"Good morning, doctors. I have taken the liberty of removing Windows 95 from my hard drive."
<br>--The winning entry in a "What were HAL's first words" contest judged by 2001: A SPACE ODYSSEY creator Arthur C. Clarke