pref.4PG: Measured and simulated data from PREF, northern Idaho, USA,...

In equivalence: Provides Tests and Graphics for Assessing Tests of Equivalence

Description

These data are the juxtaposition of model output and field measurements for the Priest River Experimental Forest in northern Idaho, USA. The model was a process-based aspatial forest stand model called 4-PG, developed from 3-PG by Duursma (2004). The data were used to demonstrate a regression-based TOST in Robinson et al (2005).

Usage

data(pref.4PG)

Format

A dataset with 35 observations on 33 variables, of which the following two were used for the model validation exercise.

stemvolinc

measured decadal stem growth in $m^3/ha$

volinc4PG

predicted decadal stem growth in $m^3/ha$

Details

Nothing in particular. Devil's club (Oplopanax horridus) is very painful.

Source

The data are documented in Duursma (2004) and Robinson et al (2005).

References

Duursma, R.A. 2004. A simple process-based model of forest growth, and a test for the Priest River Experimental Forest. Ph.D. Thesis, University of Idaho, 169 p.

Robinson, A.P., R.A. Duursma, and J.D. Marshall. 2005. A regression-based equivalence test for model validation: shifting the burden of proof. Tree Physiology 25, 903-913

Examples

data(pref.4PG)

Example output

Loading required package: lattice
Loading required package: boot

Attaching package: 'boot'

The following object is masked from 'package:lattice':

    melanoma

Loading required package: PairedData
Loading required package: MASS
Loading required package: gld
Loading required package: mvtnorm
Loading required package: ggplot2

Attaching package: 'PairedData'

The following object is masked from 'package:base':

    summary

equivalence documentation built on May 1, 2019, 9:15 p.m.