range_expansion-knitr.R
In MetaLandSim: Landscape and Range Expansion Simulation

### R code from vignette source 'range_expansion-knitr.Rnw'

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### code chunk number 1: range_expansion-knitr.Rnw:29-46 (eval = FALSE)
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## library(MetaLandSim)
## 
## #Load starting landscape (the simulation will assume that 
## #all subsequent landscapes are built with the same parameter 
## #combination).
## 
## data(rland)
## 
## #Create range expansion model. Here run only with two repetitions 
## #(iter=2). 
## #Ideally it should be run with more repetitions to provide more 
## #robust results.
## 
## data(param1)
## 
## rg_exp1 <- range_expansion(rl=rland, percI=50,  param=param1,b=1, 
## tsteps=100, iter=2)


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### code chunk number 2: range_expansion-knitr.Rnw:55-69 (eval = FALSE)
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## data(rg_exp)
## presences <- paste(system.file(package="MetaLandSim"),
##  "/examples/presences.asc", sep="")
## landmask <- paste(system.file(package="MetaLandSim"), 
## "/examples/landmask.asc", sep="")
## 
## #Create raster, using the sample dataset 
## #rg_exp (generated with 100 repetitions)
## 
## #we can load the pre-defined dataset:
## data("rg_exp")
## 
## range_raster(presences.map = presences, re.out=rg_exp, 
## mask.map=landmask, plot.directions=FALSE)