fundamental.matrix {popbio}

Fundamental matrix and age-specific survival

Description

Age-specific survival calculations from stage-classified matrices. Includes the mean, variance and coefficient of variation (cv) of the time spent in each stage class and the mean and variance of the time to death

Usage

fundamental.matrix(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 5.3.1 in Caswell (2001).

Value

A list with 5 items

N

fundamental matrix or mean of the time spent in each stage class

var

variance of the time spent in each stage class

cv

coefficient of variation (sd/mean)

meaneta

mean of time to death

vareta

variance of time to death

Author(s)

Chris Stubben

References

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

See Also

see generation.time and net.reproductive.rate for other age-specific traits

Examples

fundamental.matrix(whale)