caribou

Stratified random sampling was used to estimate the size of the Nelchina herd of Alaskan caribou (Rangifer tarandus) in February 1962 (Siniff and Skoog 1964). 
The total population of sample units (for which responses would be counts of caribou) consisted of 699 four mile\(^2\) areas. This population was divided into six strata, and each of these was randomly sampled.

datasets

Contains functions from: Aho, K. (2014) Foundational and Applied Statistics for Biologists using R.  CRC/Taylor and Francis, Boca Raton, FL, ISBN: 978-1-4398-7338-0.

Ken Aho

asbio

A Collection of Statistical Tools for Biologists

caribou function

A data frame with 6 observations on the following 5 variables.<dl>
 <dt><code>stratum</code></dt>
<dd>Strata; a factor with levels <code>A</code> <code>B</code> <code>C</code> <code>D</code> <code>E</code> <code>F</code></dd> <dt><code>N.h</code></dt>
<dd>Strata population size</dd> <dt><code>n.h</code></dt>
<dd>Strata sample size</dd> <dt><code>x.bar.h</code></dt>
<dd>Strata means</dd> <dt><code>var.h</code></dt>
<dd>Strata variances</dd> 
</dl>

Format

Caribou count data — caribou

A data frame with 6 observations on the following 5 variables.<dl>
 <dt><code>stratum</code></dt>
<dd>Strata; a factor with levels <code>A</code> <code>B</code> <code>C</code> <code>D</code> <code>E</code> <code>F</code></dd>

 <dt><code>N.h</code></dt>
<dd>Strata population size</dd>

 <dt><code>n.h</code></dt>
<dd>Strata sample size</dd>

 <dt><code>x.bar.h</code></dt>
<dd>Strata means</dd>

 <dt><code>var.h</code></dt>
<dd>Strata variances</dd>

 
</dl>

caribou: Caribou count data

Description

Usage

Arguments

Format