| growth_and_yield_evaluation {care4cmodel} | R Documentation |
Extensive Growth and Yield Evaluation
Description
Provide an extensive compilation of growth and yield related results.
Usage
growth_and_yield_evaluation(sim_agg, concept_def, detailed_out = FALSE)
Arguments
sim_agg |
Aggregated simulated area dynamics, more precisely, the output
of |
concept_def |
Concept definition matching |
detailed_out |
Boolean, if TRUE, also pre-evaluation output (calculated by the internal function growth_and_yield_pre_eval) will be part of the result list (default = FALSE) |
Details
The result object, a list, contains the following elements:
gyield_summary: A tibble that contains phase overarching growth and yield information. In this tibble, each row is a point in time. The columns (in addition to time) are: vol_standing, the standing volume on the total area of interest; vol_rmv_cont,the continuous removals that take place, as long as an area is in a given phase; vol_rmv_trans, the volume removals occurring at phase transitions from phases with more to such with less standing volume; vol_rmv_damage, the volume losses due to damage events; vol_rmv_harvest, regular harvest volume, the sum of vol_rmv_cont and vol_rmv_trans; vol_rmv_total, all removed volume, the sum of vol_rmv_harvest and vol_rmv_damage; vol_mort, the mortality volume (normal, not event-triggered); vol_inc, the volume increment on the whole area resulting from the vol_standing, vol_rmv_total, and vol_mort.
gyield_phases: A list of tibbles, one for each variable as contained in gyield_summary (except the volume increment) which makes no sense in a phase-wise context), but in phase-wise resolution. In each tibble, each row is a point in time, the columns represent the stand development phases.
gyield_pre (in case the user has chosen
detailed_out = TRUE): A tibble, where each row is a point in time. The columns (in addition to time) are: vol_standing, the standing volume on the total area of interest; vol_rmv_cont,the continuous removals that take place, as long as an area is in a given phase; vol_rmv_trans, the volume removals occurring at phase transitions from phases with more to such with less standing volume;vol_rmv_damage, the volume losses due to damage events; vol_rmv_harvest, regular harvest volume, the sum of vol_rmv_cont and vol_rmv_trans; vol_rmv_total, all removed volume, the sum of vol_rmv_harvest and vol_rmv_damage; vol_mort, the mortality volume (normal, not event-triggered); vol_inc, the volume increment on the whole area resulting from the vol_standing, vol_rmv_total, and vol_mort.
Value
A list with two elements (see also details),
gyield_summary: A tibble that contains phase overarching growth and yield information.
gyield_phases: A list of tibbles, each one representing one of the growth and yield variables also found in gyield_summary, but here on the level of the single stand development phases.
If the user has selected detailed_out = TRUE, there will also be
another list element, gyield_pre, which contains the interim information
from which gyield_summary and gyield_phases are calculated.
Examples
# Run a simulation and store the aggregated outcome
state_vars <- setup_statevars(
pine_thinning_from_above_1, c(1000, 0, 0, 0, 0, 0)
)
time_span <- 200
parms <- setup_parms(pine_thinning_from_above_1)
parms$risk_mat <- setup_risk_events(
time_span, avg_event_strength = 1, parms$risk
)
sim_areas_agg <- sim_area_single_concept_with_risk(
state_vars,
parms = parms,
event_times = c(0:time_span),
time_span = time_span
) |>
aggregate_raw_sim_rslt(pine_thinning_from_above_1)
# Growth and yield evaluation
growth_and_yield_evaluation(sim_areas_agg, pine_thinning_from_above_1)