| make.clem {LoopAnalyst} | R Documentation |
Compute the Change in Life Expectancy Matrix
Description
Validates a community matrix and computes its associated change in life expectancy matrix.
Usage
make.clem(CM, status=FALSE)
Arguments
CM |
A valid community matrix. |
status |
Switches on an element-by-element progress indicator when set to |
Details
The supplied matrix is validated as a community matrix, and a table of predicted changes in life expectancy (i.e. the inverse of turnover) given a press perturbation is computed. Diagonal elements can differ for births and deaths, and these predictions, in that order, are separated by a comma.
Value
A change in life expectancy matrix
Author(s)
Alexis Dinno (alexis.dinno@pdx.edu)
Please contact me with any questions, bug reports or suggestions for improvement. Fixing bugs will be facilitated by sending along:
| [1] | a copy of your relevant R data file (de-labeled or anonymized is fine), |
| [2] | a copy of the command syntax used, and |
| [3] | a copy of the exact output of the command. |
https://alexisdinno.com/LoopAnalyst/
References
Dambacher, J. M., R. Levins and P. A. Rossignol. (2005) Life expectancy change in perturbed communities: Derivation and qualitative analysis. Mathematical Biosciences 197,1–14. <doi:10.1016/j.mbs.2005.06.001>.
Puccia, C. J. and Levins, R. (1986) Qualitative Modeling of Complex Systems: An Introduction to Loop Analysis and Time Averaging. Cambridge: Harvard University Press. <doi:10.4159/harvard.9780674435070>.
See Also
Examples
## compute change in life expectancy matrix
data(cm.DLR)
make.clem(cm.DLR)