Converts standard normal random values to lognormals with defined means and variances
number of observations
mean value of the fertility rate
variance of the vital rate (not standard deviation)
A vector of random lognormal values.
This function could probably be replaced with built-in functions
for the Log Normal Distribution
Original Matlab code by Morris and Doak (2002: 281). Adapted to R by Patrick Nantel, 20 June 2005.
converted Matlab code from Box 8.4 in Morris and Doak (2002)
Morris, W. F., and D. F. Doak. 2002. Quantitative conservation biology: Theory and practice of population viability analysis. Sinauer, Sunderland, Massachusetts, USA.
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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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