Subset of data from an experiment that studied
the effect on soil pH of cover crops subjected to trampling
by cattle predominantly under continuous grazing system,
analyzed at different depths.

datasets

Package for analysis of simple experimental designs (CRD, RBD and LSD), experiments in double factorial schemes (in CRD and RBD), experiments in a split plot in time schemes (in CRD and RBD), experiments in double factorial schemes with an additional treatment (in CRD and RBD), experiments in triple factorial scheme (in CRD and RBD) and experiments in triple factorial schemes with an additional treatment (in CRD and RBD), performing the analysis of variance and means comparison by fitting regression models until the third power (quantitative treatments) or by a multiple comparison test, Tukey test, test of Student-Newman-Keuls (SNK), Scott-Knott, Duncan test, t test (LSD) and Bonferroni t test (protected LSD) - for qualitative treatments; residual analysis (Ferreira, Cavalcanti and Nogueira, 2014) <doi:10.4236/am.2014.519280>.

Eric Batista Ferreira

ExpDes

Experimental Designs Package

ex9 function

A data frame with 48 observations on the following
4 variables.<dl class="dl-horizontal">
 <dt><code>cobertura</code></dt><dd>a factor with levels <code>T1</code>
 <code>T2</code> <code>T3</code> <code>T4</code> <code>T5</code> <code>T6</code></dd>
 <dt><code>prof</code></dt><dd>a numeric vector</dd>
 <dt><code>rep</code></dt><dd>a numeric vector</dd>
 <dt><code>pH</code></dt><dd>a numeric vector</dd>
 </dl>

Format

Vegetated: Split-plot in CRD — ex9

A data frame with 48 observations on the following
4 variables.<dl class='dl-horizontal'>
 <dt><code>cobertura</code></dt><dd>a factor with levels <code>T1</code>
 <code>T2</code> <code>T3</code> <code>T4</code> <code>T5</code> <code>T6</code></dd>
 <dt><code>prof</code></dt><dd>a numeric vector</dd>
 <dt><code>rep</code></dt><dd>a numeric vector</dd>
 <dt><code>pH</code></dt><dd>a numeric vector</dd>
 </dl>

ex9: Vegetated: Split-plot in CRD

Description

Usage

Arguments

Format

References