nverno / rgr

residual growth rates

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Fitting residual growth rates

Residual growth rate (rGR) = observed growth / predicted growth

rGR is calculated differently for use in the growth and hazard models. In the growth models, predicted growth is a upper quantile model (i.e. the predictive model is fit to the top performers in size classes). For hazards, the primary objective is to have rGR values that are not significantly correlated with local relative size (LRS).
Thus, various model (linear, power, segemented linear, polynomial) were tried for each plot (separately by time period as well).

Issues

  • rGR for hazards is still correlated in some plots (see ./test)

Dependencies

Scripts

Repositories

Data

Directory Layout

  • data-prep, data-trans contain scripts to clean and perform manipulations such as transformation between wide/long or constructing size classes from continuous variables.
  • functions.R stores store user-defined functions
  • etc.

References

Papers, codes

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residual growth rates


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