. Change and trend analysis
capture the behavior of environmental resources between two samples,
while trend analysis generalizes this approach to include more than two
samples. Often, change and trend analyses are performed to study an
environmental resource through time. Change analysis is performed using
the <code><a href="../reference/change_analysis.html">change_analysis()</a></code> function, and trend analysis is
performed using the <code><a href="../reference/trend_analysis.html">trend_analysis()</a