ny_trees

The original data is derived from the Forest Inventory and Analysis program,
implemented by the US Department of Agriculture's Forest Service.

datasets

Assessing predictive models of spatial data can be
challenging, both because these models are typically built for
extrapolating outside the original region represented by training data
and due to potential spatially structured errors, with "hot spots" of
higher than expected error clustered geographically due to spatial
structure in the underlying data. Methods are provided for assessing
models fit to spatial data, including approaches for measuring the
spatial structure of model errors, assessing model predictions at
multiple spatial scales, and evaluating where predictions can be made
safely. Methods are particularly useful for models fit using the
'tidymodels' framework. Methods include Moran's I ('Moran' (1950)
<doi:10.2307/2332142>), Geary's C ('Geary' (1954)
<doi:10.2307/2986645>), Getis-Ord's G ('Ord' and 'Getis' (1995)
<doi:10.1111/j.1538-4632.1995.tb00912.x>), agreement coefficients from
'Ji' and Gallo (2006) (<doi: 10.14358/PERS.72.7.823>), agreement
metrics from 'Willmott' (1981) (<doi: 10.1080/02723646.1981.10642213>)
and 'Willmott' 'et' 'al'. (2012) (<doi: 10.1002/joc.2419>), an
implementation of the area of applicability methodology from 'Meyer'
and 'Pebesma' (2021) (<doi:10.1111/2041-210X.13650>), and an
implementation of multi-scale assessment as described in 'Riemann'
'et' 'al'. (2010) (<doi:10.1016/j.rse.2010.05.010>).

Michael Mahoney

waywiser

Ergonomic Methods for Assessing Spatial Models

Lucas Johnson

Virgilio Gómez-Rubio

Jakub Nowosad

Posit Software, PBC 

ny_trees function

An sf object using EPSG 5070: NAD83 / Conus Albers (in meters), with 5,303 rows and 5 columns:<dl>
<dt>yr</dt>
<dd>The year measurements were taken.</dd><dt>plot</dt>
<dd>A unique identifier signifying the plot measurements were taken at.</dd><dt>n_trees</dt>
<dd>The number of trees present on a plot.</dd><dt>agb</dt>
<dd>The total aboveground biomass at the plot location, in pounds.</dd><dt>geometry</dt>
<dd>The centroid of the plot location.</dd>
</dl>

Format

Number of trees and aboveground biomass for Forest Inventory and Analysis plots in New York State — ny_trees

An sf object using EPSG 5070: NAD83 / Conus Albers (in meters), with 5,303 rows and 5 columns:<dl>
<dt>yr</dt>
<dd>The year measurements were taken.</dd>

<dt>plot</dt>
<dd>A unique identifier signifying the plot measurements were taken at.</dd>

<dt>n_trees</dt>
<dd>The number of trees present on a plot.</dd>

<dt>agb</dt>
<dd>The total aboveground biomass at the plot location, in pounds.</dd>

<dt>geometry</dt>
<dd>The centroid of the plot location.</dd>


</dl>

ny_trees: Number of trees and aboveground biomass for Forest Inventory and Analysis plots in New York State

Description

Usage

Arguments

Format