Gunnels

<p>Presence/absence of gunnels (eels) at shoreline quadrats</p>

datasets

Provides datasets for the textbook Stat2: Modeling
with Regression and ANOVA (second edition). Also includes
datasets from the first edition, Stat2: Building Models for
a World of Data, and functions for plotting diagnostic
graphics.

Robin Lock

Stat2Data

Datasets for Stat2

Ann Cannon

Bradley Hartlaub

Allan Rossman

Jeffrey Witmer

Gunnels function

<p>A data frame with 1592 observations on the following 10 variables.</p><table class="table">
<tr><td><code>Gunnel</code></td><td>1= gunnel present in the quadrat or 0=gunnel absent</td></tr>
<tr><td><code>Time</code></td><td>Minutes after midnight</td></tr>
<tr><td><code>Fromlow</code></td><td>Time in minutes from low tide</td></tr>
<tr><td><code>Slope</code></td><td>Slope (to nearest 10 degrees) perpendicular to waterline</td></tr>
<tr><td><code>Rw</code></td><td>Percentage cover in quadrat of rockweed/algae/plants</td></tr>
<tr><td><code>Amphiso</code></td><td>Density of crustacean food: 0=none to 4=high</td></tr>
<tr><td><code>Subst</code></td><td>Substratum: 1=solid rock, 2=rocky cobbles, 3=mixed pebbles/sand, 4=fine sand,</td></tr>
<tr><td></td><td>5=mud, 6=mixed mud/shell detritus, 7=cobbles on solid rock, 8=cobbles on mixed pebbles/sand,</td></tr>
<tr><td></td><td>9=cobbles on fine sand, 10=cobbles on mud, 11=cobbles on mixed mud/shell detritus,</td></tr>
<tr><td></td><td>12=cobbles on shell detritus, 13=shell detritus</td></tr>
<tr><td><code>Pool</code></td><td>Standing water deep?  1=yes or 2=no</td></tr>
<tr><td><code>Water</code></td><td>Standing water in the quadrat?  1=yes or 2=no</td></tr>
<tr><td><code>Cobble</code></td><td>Rocky cobbles? 1=yes or 2=no</td></tr>
</table><p></p><p></p>

Format

Are Gunnels Present at Shoreline? — Gunnels

<p>A data frame with 1592 observations on the following 10 variables.</p><table class='table'>
<tr><td><code>Gunnel</code></td><td>1= gunnel present in the quadrat or 0=gunnel absent</td></tr>
<tr><td><code>Time</code></td><td>Minutes after midnight</td></tr>
<tr><td><code>Fromlow</code></td><td>Time in minutes from low tide</td></tr>
<tr><td><code>Slope</code></td><td>Slope (to nearest 10 degrees) perpendicular to waterline</td></tr>
<tr><td><code>Rw</code></td><td>Percentage cover in quadrat of rockweed/algae/plants</td></tr>
<tr><td><code>Amphiso</code></td><td>Density of crustacean food: 0=none to 4=high</td></tr>
<tr><td><code>Subst</code></td><td>Substratum: 1=solid rock, 2=rocky cobbles, 3=mixed pebbles/sand, 4=fine sand,</td></tr>
<tr><td></td><td>5=mud, 6=mixed mud/shell detritus, 7=cobbles on solid rock, 8=cobbles on mixed pebbles/sand,</td></tr>
<tr><td></td><td>9=cobbles on fine sand, 10=cobbles on mud, 11=cobbles on mixed mud/shell detritus,</td></tr>
<tr><td></td><td>12=cobbles on shell detritus, 13=shell detritus</td></tr>
<tr><td><code>Pool</code></td><td>Standing water deep?  1=yes or 2=no</td></tr>
<tr><td><code>Water</code></td><td>Standing water in the quadrat?  1=yes or 2=no</td></tr>
<tr><td><code>Cobble</code></td><td>Rocky cobbles? 1=yes or 2=no</td></tr>
</table>



Gunnels: Are Gunnels Present at Shoreline?

Description

Arguments

Format

Details

`Gunnel`	1= gunnel present in the quadrat or 0=gunnel absent
`Time`	Minutes after midnight
`Fromlow`	Time in minutes from low tide
`Slope`	Slope (to nearest 10 degrees) perpendicular to waterline
`Rw`	Percentage cover in quadrat of rockweed/algae/plants
`Amphiso`	Density of crustacean food: 0=none to 4=high
`Subst`	Substratum: 1=solid rock, 2=rocky cobbles, 3=mixed pebbles/sand, 4=fine sand,
	5=mud, 6=mixed mud/shell detritus, 7=cobbles on solid rock, 8=cobbles on mixed pebbles/sand,
	9=cobbles on fine sand, 10=cobbles on mud, 11=cobbles on mixed mud/shell detritus,
	12=cobbles on shell detritus, 13=shell detritus
`Pool`	Standing water deep? 1=yes or 2=no
`Water`	Standing water in the quadrat? 1=yes or 2=no
`Cobble`	Rocky cobbles? 1=yes or 2=no