sensitivity {popbio}R Documentation

Sensitivity analysis of a projection matrix

Description

Calculate the sensitivities of eigenvalues to changes in the projection matrix elements

Usage

sensitivity(A, zero=FALSE)

Arguments

A A projection matrix
zero Set sensitivities for unobserved transitions to zero, default is false

Details

see section 9.1 in Caswell (2001).

Value

Asensitivity matrix

Author(s)

Chris Stubben

References

Caswell, H. 2001. Matrix population models: construction, analysis, and interpretation, Second edition. Sinauer, Sunderland, Massachusetts, USA.

See Also

elasticity

Examples

data(teasel)

sens<-sensitivity(teasel)
## IMAGE plot with smaller boxes 
image2(sens, mar=c(1,3.5,5,1), box.offset=.1)
 title("Sensitivity matrix using image2", line=2.5)
## MATPLOT
matplot2(sens, log='y', type='b', yaxt='n', ltitle="Fate",
ylab=expression(paste("Sensitivity of ",lambda)), 
main="Sensitivity matrix using matplot2")
pwrs<- -4:1
axis(2, 10^pwrs, parse(text=paste("10^", pwrs, sep = "")), las=1)



[Package popbio version 2.0 Index]