summarizeModel.loadReg2: Extract model summary statistics from a loadReg2 model

In USGS-R/loadflex: Models and Tools for Watershed Flux Estimates

Extract model summary statistics from a loadReg2 model

Description

Produce a 1-row data.frame of model metrics. The relevant metrics for loadReg2 models are largely the same as those reported by the rloadest package, though reported in this streamlined data.frame format for bulk reporting. summarizeModel.loadReg2 should rarely be accessed directly; instead, call summarizeModel() on a loadReg2 object.

Usage

## S3 method for class 'loadReg2'
summarizeModel(load.model, ...)

Arguments

load.model	A load model object, typically inheriting from loadModel and always implementing the loadModelInterface.
...	Other arguments passed to model-specific methods

Value

Returns a 1-row data frame with the following columns:

• site.id - the unique identifier of the site, as in metadata()

• constituent - the unique identifier of the constituent, as in metadata()

• eqn - the regression equation, possibly in the form const ~ model(x) where x is the Number of a pre-defined equation in rloadest::Models

• RMSE - the square root of the mean squared error. Errors will be computed from either fluxes or concentrations, as determined by the value of pred.format that was passed to loadReg2() when this model was created

• r.squared - the r-squared value, generalized for censored data, describing the amount of observed variation explained by the model

• p.value - the p-value for the overall model fit

• cor.resid - the serial correlation of the model residuals

• PPCC - the probability plot correlation coefficient measuring the normality of the residuals

• Intercept, lnQ, lnQ2, DECTIME, DECTIME2, sin.DECTIME, cos.DECTIME, etc. - the fitted value of the intercept and other terms included in this model (list differs by model equation)

• Intercept.SE, lnQ.SE, lnQ2.SE, DECTIME.SE, DECTIME2.SE, sin.DECTIME.SE, cos.DECTIME.SE, etc. - the standard error of the fitted estimates of these terms

• Intercept.p.value, lnQ.p.value, lnQ2.p.value, DECTIME.p.value, DECTIME2.p.value, sin.DECTIME.p.value, cos.DECTIME.p.value - the p-values for each of these model terms

See Also

Other summarizeModel: summarizeModel.loadComp, summarizeModel.loadInterp, summarizeModel.loadLm, summarizeModel.loadModel, summarizeModel

Examples

## Not run: 
library(rloadest)
no3_lr <- suppressWarnings(
  loadReg2(loadReg(NO3 ~ model(9), data=get(data(lamprey_nitrate)),
  flow="DISCHARGE", dates="DATE", time.step="instantaneous",
  flow.units="cfs", conc.units="mg/L", load.units="kg",
  station='Lamprey River, NH')))
summarizeModel(no3_lr)

## End(Not run)

USGS-R/loadflex documentation built on July 26, 2023, 9:54 p.m.