Question

Please provide an example of how MC.sim in R is to be used. The data can be made up, but please provide steps and explanations what to plug into that function. Thanks.

Answer 1

Metacommunity Simulation package (MC.sim) , written in ANSI -Standard C language.

--> In order to install the current version of MCsim, u need to have devtools installed.

Once devtools is installed. u can install the current version of MCsim.

there are two steps to create metacommunity simulation in MC.sim:,

1. Make a "Landscape" :

The landscape in the "game board" on which the simulation play out and is created using the function. a landscape can be made from   , for example:

xy.coordinates.<- data.frame (

x = c (1, 2,3,4,5,),

y -= c(1 ,3, 1,5,2 ))

print(xy.coordinates)

in addition for plotting use function: plot (y ~ x , xy.coordinates)

Vectors can also be passed to fm.make.landscape, for example:

my.landscape <- MCSim: :fn.make.landscape(

site.coords=xy.coordinates,

m= c(0.5,0.5,0.1,0.1,0.1),

Ef = c(-1, -.25, .1, 1 ,2) ,

JM=1000000)

print(my.landscape$site.info).

2. Run the Simulation:

once the landscape is created , you can pass the landscape object to fn.metaSIM, along with parameter settings.

To run the simulation we have to define:

1.) the players and the traits,

2) How the players move along sites,

3) what is the probability of new players appering?

4) How long is the game ,

5) saving the output,

print(sim.result$sim.result.name).