generation.time {popbio}

Generation time

Description

Calculates the generation time of a stage-classified matrix

Usage

generation.time(A, ...)

Arguments

A

projection matrix

...

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

Details

see section 5.3.5 in Caswell (2001).

Value

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

Author(s)

Chris Stubben

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

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)