eq_l

eq_s

Horsetails (Equisetum) are the old, pre-dinosaur plant lineage.
Only several dozen species survived, but despite a long evolution the
borders between these species are still unclear for researchers.
In 2005--2006, morphometric analysis was performed of more than 1,000 horsetail
plants belong to most widespread Eurasian species growing in Middle Russia.
For the analysis, we used 8 morphological characters and also tried to identify species.
'eq_l' contains population locations and species determinations.
'eq_s' and 'eq' are actual morphometric data, but 'eq' contains only 2 species out of 8.

datasets

A collection of functions for data manipulation, plotting and statistical computing,
to use separately or with the book "Visual Statistics. Use R!":
Shipunov (2020) <http://ashipunov.info/shipunov/software/r/r-en.htm>.
Dr Alexey Shipunov died in December 2022.
Most useful functions:
Bclust(), Jclust() and BootA() which bootstrap hierarchical clustering;
Recode() which does multiple recoding in a fast, simple and flexible way;
Misclass() which outputs confusion matrix even if classes are not concerted;
Overlap() which measures group separation on any projection;
Biarrows() which converts any scatterplot into biplot;
and Pleiad() which is fast and flexible correlogram.

ORPHANED

shipunov

Miscellaneous Functions from Alexey Shipunov

eq function

This data frame contains the following columns:<dl>
<dt><code>DL.R</code></dt>
<dd>plant height, mm</dd><dt><code>DIA.ST</code></dt>
<dd>maximal diameter of stem, mm</dd><dt><code>N.REB</code></dt>
<dd>number of ridges on a stem</dd><dt><code>N.ZUB</code></dt>
<dd>number of teeth (reduced leaves)</dd><dt><code>DL.OSN.Z</code></dt>
<dd>length of tooth base</dd><dt><code>DL.TR.V</code></dt>
<dd>length of sheath</dd><dt><code>DL.BAZ</code></dt>
<dd>length of basal segment of branch</dd><dt><code>DL.PER</code></dt>
<dd>length of first (after the basal) segment of branch</dd><dt><code>SPECIES</code></dt>
<dd>preliminary species determination</dd><dt><code>N.POP</code></dt>
<dd>population number</dd><dt><code>WHERE</code></dt>
<dd>population location (region)</dd>
</dl>

Format

eq — eq

This data frame contains the following columns:<dl>
<dt><code>DL.R</code></dt>
<dd>plant height, mm</dd>

<dt><code>DIA.ST</code></dt>
<dd>maximal diameter of stem, mm</dd>

<dt><code>N.REB</code></dt>
<dd>number of ridges on a stem</dd>

<dt><code>N.ZUB</code></dt>
<dd>number of teeth (reduced leaves)</dd>

<dt><code>DL.OSN.Z</code></dt>
<dd>length of tooth base</dd>

<dt><code>DL.TR.V</code></dt>
<dd>length of sheath</dd>

<dt><code>DL.BAZ</code></dt>
<dd>length of basal segment of branch</dd>

<dt><code>DL.PER</code></dt>
<dd>length of first (after the basal) segment of branch</dd>

<dt><code>SPECIES</code></dt>
<dd>preliminary species determination</dd>

<dt><code>N.POP</code></dt>
<dd>population number</dd>

<dt><code>WHERE</code></dt>
<dd>population location (region)</dd>


</dl>

eq: eq

Description

Usage

Arguments

Format