.lnM

Computes the natural logarithm of the ratio of between and within group variances as a measure of the magnitude of difference.

Generates prediction intervals and orchard plots for
meta-analytic and meta-regression models fitted with the 'metafor'
package. Orchard plots augment classic forest plots by displaying
individual effect sizes together with group means and their confidence
and prediction intervals, providing an enhanced visualization of
meta-analytic data for ecology, evolution, and beyond. Methods are
described in Nakagawa et al. (2023) <doi:10.1111/2041-210X.14152>.

Daniel Noble

orchaRd

Visualizing Meta-Analyses with Orchard Plots and Prediction
Intervals

Shinichi Nakagawa

.lnM function

<dl><dt>x1</dt>
<dd>Mean of group 1.</dd>
<dt>x2</dt>
<dd>Mean of group 2.</dd>
<dt>sd1</dt>
<dd>Standard deviation of group 1.</dd>
<dt>sd2</dt>
<dd>Standard deviation of group 2.</dd>
<dt>n1</dt>
<dd>Sample size of group 1.</dd>
<dt>n2</dt>
<dd>Sample size of group 2.</dd></dl>

Arguments

.lnM — .lnM

<dl>

<dt>x1</dt>
<dd>Mean of group 1.</dd>


<dt>x2</dt>
<dd>Mean of group 2.</dd>


<dt>sd1</dt>
<dd>Standard deviation of group 1.</dd>


<dt>sd2</dt>
<dd>Standard deviation of group 2.</dd>


<dt>n1</dt>
<dd>Sample size of group 1.</dd>


<dt>n2</dt>
<dd>Sample size of group 2.</dd>

</dl>

.lnM: .lnM

Description

Usage

Value

Arguments