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Adjust interpolated tables for mortality

Source: R/adjust_mortality.R
adjust_mortality.Rd

This is an "internal" function—most users will want to run fia_annualize() instead. Trees in the input data_interpolated already have had their switch to STATUSCD 2 (i.e. death) interpolated to the midpoint (rounded down) between it's last survey alive and first survey dead.

Usage

adjust_mortality(data_interpolated, use_mortyr = TRUE)

Arguments

data_interpolated

tibble created by interpolate_data()

use_mortyr

logical; use MORTYR (if recorded) as the first year a tree was dead?

Value

a tibble

Details

This does the following:

  • Optionally figures out if a tree has a recorded MORTYR and uses that for the transition to STATUSCD 2 instead of the interpolated values. If the tree is alive (STATUSCD 1) in MORTYR, then it is assumed it died in the following year.

  • Adjusts STANDING_DEAD_CD so that it only applies to dead trees

  • Adjusts DECAYCD so that it only applies to standing dead trees

  • Adjusts DIA, HT, ACTUALHT, CULL, and CR so that they only apply to live or standing dead trees in sampled conitions.