AKmoose_df

A data set that can be used with the <code>sptotal</code> package. In
this example, the counts are of moose on 860 sites of equal area.

datasets

Performs predictions of totals and weighted sums, or finite population block kriging, on spatial data using the methods in Ver Hoef (2008) <doi:10.1007/s10651-007-0035-y>. The primary outputs are an estimate of the total, mean, or weighted sum in the region, an estimated prediction variance, and a plot of the predicted and observed values. This is useful primarily to users with ecological data that are counts or densities measured on some sites in a finite area of interest. Spatial prediction for the total count or average density in the entire region can then be done using the functions in this package.

Higham Matt

sptotal

Predicting Totals and Weighted Sums from Spatial Data

Matt Higham

Jay Ver Hoef

Bryce Frank

Michael Dumelle

AKmoose_df function

A dataframe object. The data frame <code>AKmoose_df</code> contains 860 rows and 4 columns:<dl>
 <dt>elev_mean</dt>
<dd>The mean elevation for each sitefor each site</dd> <dt>strat</dt>
<dd>A stratification variable (either L or M)</dd> <dt>surveyed</dt>
<dd>Assigned a 1 if the site was surveyed and a 0 otherwise</dd> <dt>total</dt>
<dd>The total moose count on each site (<code>NA</code> if the site was not surveyed)</dd> <dt>x</dt>
<dd>the x-coordinate centroid of the site (TM)</dd> <dt>y</dt>
<dd>the y-coordinate centroid of the site (TM)</dd> <dt>lon</dt>
<dd>the longitudinal centroid of the site</dd> <dt>lat</dt>
<dd>the latitudinal centroid of the site</dd></dl>

Format

Data Set with Alaska Moose Counts. — AKmoose_df

A dataframe object. The data frame <code>AKmoose_df</code> contains 860 rows and 4 columns:<dl>
 <dt>elev_mean</dt>
<dd>The mean elevation for each sitefor each site</dd>

 <dt>strat</dt>
<dd>A stratification variable (either L or M)</dd>

 <dt>surveyed</dt>
<dd>Assigned a 1 if the site was surveyed and a 0 otherwise</dd>

 <dt>total</dt>
<dd>The total moose count on each site (<code>NA</code> if the site was not surveyed)</dd>

 <dt>x</dt>
<dd>the x-coordinate centroid of the site (TM)</dd>

 <dt>y</dt>
<dd>the y-coordinate centroid of the site (TM)</dd>

 <dt>lon</dt>
<dd>the longitudinal centroid of the site</dd>

 <dt>lat</dt>
<dd>the latitudinal centroid of the site</dd>



</dl>

AKmoose_df: Data Set with Alaska Moose Counts.

Description

Usage

Arguments

Format

Examples