error_funs: Estimate model error

In valentingar/ConFluxPro: A toolkit for soil gas analysis

Estimate model error

Description

A set of functions that can be called on an cfp_pfres object (the result of a call to pro_flux) to assess the quality of the model.

Usage

error_concentration(x, param_cols = NULL, normer = "sd")

## S3 method for class 'cfp_pfres'
error_concentration(x, param_cols = NULL, normer = "sd")

## S3 method for class 'cfp_fgres'
error_concentration(x, param_cols = NULL, normer = "sd")

## S3 method for class 'cfp_altres'
error_concentration(x, param_cols = NULL, normer = "sd")

error_efflux(x, param_cols, EFFLUX, normer = "sd", ...)

## S3 method for class 'cfp_pfres'
error_efflux(x, param_cols, EFFLUX, normer = "sd", ...)

## S3 method for class 'cfp_altres'
error_efflux(x, param_cols, EFFLUX, normer = "sd", ...)

Arguments

x	A cfp_pfres object, that is returned by a call to pro_flux()
param_cols	The columns that, together, define different parameters (e.g. different gases) for which NRMSEs should be calculated separately (e.g. "gas"). Defaults to the id_cols of layers_map. If no such distinction is wished, set to character()
normer	a character string defining the type of normalization to be applied. Can be one of mean the arithmetic mean of a sd the standard deviation of a (default). range the difference between the range of a IQR the difference between the interquantile range of a
EFFLUX	A data.frame with (at most) one value of efflux per profile of x. Must contain any id_cols of x needed.
...	Further arguments passed to efflux() in case of cfp_fgres.

Details

For error_concentration, the way the error parameter is calculated for cfp_fgres and cfp_pfres objects is entirely different and should not be used in comparison between the two. NRMSE of cfp_pfres objects are calculated as the mean of depth-wise NRMSEs of modelled versus input gas concentrations. 'NRMSE's of cfp_fgres objects simply calculate the mean of (dcdz_sd / dcdz_ppm) per group described in param_cols.

valentingar/ConFluxPro documentation built on Dec. 1, 2024, 9:35 p.m.