Hello Jeffrey.
Page 54 has a simple little example with matplot to show the results.
https://dl.dropbox.com/u/2703650/R/rforbeginners/Rforbeginners.pdf
All the best,
Diuncan
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Maybe you would be interested in the package Rramas
It implements some of the tools in the Ramas Ecolab (c) software
Cheers,
Marcelino
http://cran.r-project.org/web/packages/Rramas/Rramas.pdf
Con fecha 29/11/2012, "Jeffrey Stratford"
escribió:
>These are great examples. Thanks so much guys!
Jeffrey,
Check out also the popbio package.
Cheers,
Peter
--
Péter Sólymos, Dept Biol Sci, Univ Alberta, T6G 2E9, Canada AB
soly...@ualberta.ca, Ph 780.492.8534, http://psolymos.github.com
Alberta Biodiversity Monitoring Institute, http://www.abmi.ca
Boreal Avian Modelling Project, http://www.bore
These are great examples. Thanks so much guys!
On Thu, Nov 29, 2012 at 1:41 PM, Marc Taylor wrote:
> Hello Jeffrey.
>
> I have done something similar for a course on "Modelling in Conservation
> Biology". Here is a simple example of an age-based Leslie model with three
> classes:
>
> L=matrix(
Hello Jeffrey.
I have done something similar for a course on "Modelling in Conservation
Biology". Here is a simple example of an age-based Leslie model with three
classes:
L=matrix(c(0.5, 0., 0, 1.0, 0, 0., 0.75, 0, 0), nrow=3, ncol=3)
time=10
No=c(2,0,0)
POP=c(No)
Nt=No
for (i in 1:time
Is this what you want?
Your code
#the data
A <- c(0,0,100, 0.4,0,0, 0,0.7,0)
#create a matrix from the data
L <- matrix(A, nrow=3, byrow=T)
#check out the matrix
L
#the starting population
n_0 <- c(1000, 400, 100)
#the next generation
#n_1 <- L %*% n_0
#check it out
#n_1
#run another generation
#
Hi everyone,
I have a two part population lab in my Ecology course. The first part was
showing exponential and logistic growth. For the second section, I would
like to introduce them to Leslie/Lefkovitch models. I'm able to multiply
the matrix and the age classes step by step but I would like to h
