.v_lnM

Computes the sampling variance of the natural logarithm of the ratio of between and within group variances.

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

.v_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>
<dt>r</dt>
<dd>Optional correlation between groups for dependent samples. Default is NULL for independent samples.</dd></dl>

Arguments

.v_lnM — .v_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>


<dt>r</dt>
<dd>Optional correlation between groups for dependent samples. Default is NULL for independent samples.</dd>

</dl>

.v_lnM: .v_lnM

Description

Usage

Value

Arguments