flux_quality_exp: quality assessment for the slopes estimated by flux_fitting

In fluxible: Ecosystem Gas Fluxes Calculations for Closed Loop Chamber Setup

quality assessment for the slopes estimated by flux_fitting

Description

indicates if fluxes should be discarded or replaced by 0 according to parameters set by user. flux_quality_lm is for the model of the lm family. flux_quality_exp is for the exponential model.

Usage

flux_quality_exp(
  slopes_df,
  f_conc,
  f_fluxid,
  f_slope,
  f_time,
  f_fit,
  f_slope_lm,
  f_b,
  force_discard,
  force_ok,
  force_zero,
  force_lm,
  gfactor_threshold,
  rmse_threshold,
  cor_threshold,
  b_threshold,
  name_df
)

Arguments

slopes_df	dataset containing slopes, fluxID, and parameters of the exponential expression
f_conc	column with gas concentration
f_fluxid	column of ID for each measurement
f_slope	column containing the slope of each flux (as calculated by the flux_fitting function)
f_time	column containing the time of each measurement in seconds
f_fit	column containing the modeled data
f_slope_lm	column containing the linear slope of each flux (as calculated by the flux_fitting function)
f_b	column containing the b parameter of the exponential expression
force_discard	vector of fluxIDs that should be discarded by the user's decision
force_ok	vector of fluxIDs for which the user wants to keep the calculated slope despite a bad quality flag
force_zero	vector of fluxIDs that should be replaced by zero by the user's decision
force_lm	vector of fluxIDs for which the linear slope should be used by the user's decision
gfactor_threshold	threshold for the g-factor. Defines a window with its opposite outside which the flux will be flagged discard.
rmse_threshold	threshold for the RMSE of each flux above which the fit is considered unsatisfactory
cor_threshold	threshold for the correlation coefficient of gas concentration with time below which the correlation is considered non significant
b_threshold	threshold for the b parameter. Defines a window with its opposite inside which the fit is considered good enough.
name_df	name of slopes_df

Value

same dataframe with added flag and corrected slopes columns

fluxible documentation built on June 25, 2025, 1:08 a.m.