beetle

Multivariate dataset containing six measurements on each of three species of flea-beetles: concinna, heptapotamica, and heikertingeri.
The original data set contains one column identifying the species of the observations, which is irrelevant
and has been deleted here.

datasets

Functionality to compute the projection median via several
algorithms. Also provides functions to plot different
multivariate medians and multivariate quantiles in two-dimensional and
three-dimensional data respectively. See Chen, F and Nason, G P (2020)
"A new method for computing the projection median, its influence curve
and techniques for the production of projected quantile plots." PLOS One
<doi:10.1371/journal.pone.0229845>.

Guy Nason

Yamm

Multivariate Methods Based on Projections and Related Concepts

Fan Chen

beetle function

A data frame with 74 observations on the following 6 variables.<dl class="dl-horizontal">
 <dt><code>tars1</code></dt><dd>Width of the first joint of the first tarsus in microns (the sum of measurements for both tarsi).</dd>
 <dt><code>tars2</code></dt><dd>The same for the second joint.</dd>
 <dt><code>head</code></dt><dd>The maximal width of the head between the external edges of the eyes in 0.01 mm.</dd>
 <dt><code>aede1</code></dt><dd>The maximal width of the aedeagus in the fore-part in microns.</dd>
 <dt><code>aede2</code></dt><dd>The front angle of the aedeagus (1 unit = 7.5 degrees).</dd>
 <dt><code>aede3</code></dt><dd>The aedeagus width from the side in microns.</dd>
 </dl>

Format

Six Measurements of Beetles — beetle

A data frame with 74 observations on the following 6 variables.<dl class='dl-horizontal'>
 <dt><code>tars1</code></dt><dd>Width of the first joint of the first tarsus in microns (the sum of measurements for both tarsi).</dd>
 <dt><code>tars2</code></dt><dd>The same for the second joint.</dd>
 <dt><code>head</code></dt><dd>The maximal width of the head between the external edges of the eyes in 0.01 mm.</dd>
 <dt><code>aede1</code></dt><dd>The maximal width of the aedeagus in the fore-part in microns.</dd>
 <dt><code>aede2</code></dt><dd>The front angle of the aedeagus (1 unit = 7.5 degrees).</dd>
 <dt><code>aede3</code></dt><dd>The aedeagus width from the side in microns.</dd>
 </dl>

beetle: Six Measurements of Beetles

Description

Usage

Arguments

Format

References

Examples