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

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

Measured and simulated data from PREF, northern Idaho, USA, and 4-PG

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)

equivalence documentation built on June 8, 2025, 9:36 p.m.