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popbio (version 2.7)

generation.time: Generation time

Description

Calculates the generation time of a stage-classified matrix

Usage

generation.time(A, ...)

Value

Generation time. If the transition matrix is singular, then NA is returned.

Arguments

A

projection matrix

...

additional items are passed to splitA and are used to split A into T and F matrices

Author

Chris Stubben

Details

see section 5.3.5 in Caswell (2001).

References

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

See Also

see fundamental.matrix and net.reproductive.rate for other age-specific traits

Examples

Run this code
generation.time(whale)
## fertilities in last column
generation.time(teasel, r=1:6, c=6)
## Plot 3 from Calathea
sapply(calathea[9:12], generation.time)

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