Description Usage Arguments Details Value Note Author(s) References See Also Examples
Converts standard normal random values to lognormals with defined means and variances
1 |
n |
number of observations |
mean |
mean value of the fertility rate, default 2 |
var |
variance of the vital rate (not standard deviation), default 1 |
converted Matlab code from Box 8.4 in Morris and Doak (2002)
A vector of random lognormal values
This function could probably be replaced with built-in functions
for the Log Normal Distribution rlnorm
Original Matlab code by Morris and Doak (2002: 281). Adapted to R by Patrick Nantel, 20 June 2005.
Morris, W. F., and D. F. Doak. 2002. Quantitative conservation biology: Theory and practice of population viability analysis. Sinauer, Sunderland, Massachusetts, USA.
1 2 3 4 5 6 7 8 | lnorms(1)
# Generate lognormal random fertilities
# for a population of 1000 mature individuals with mean fertility of
# 3 and inter-individual variance in fertility of 1.5.
rndfert <- lnorms(1000, 3,1.5)
summary(rndfert)
hist(rndfert,40, main="Lognormal random fertilities",
xlab="Fertility rate", col="blue")
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