grandSD

Pooled standard deviation of a set of groups

High-throughput, flexible and reproducible extraction of data from figures in primary research papers. metaDigitise() can extract data and / or automatically calculate summary statistics for users from box plots, bar plots (e.g., mean and errors), scatter plots and histograms.

Daniel Noble

metaDigitise

Extract and Summarise Data from Published Figures

Joel Pick

Shinichi Nakagawa

grandSD function

<dl><dt>mean</dt>
<dd>Mean</dd>
<dt>sd</dt>
<dd>standard deviation</dd>
<dt>n</dt>
<dd>Sample size</dd>
<dt>equal</dt>
<dd>Logical: Whether to calculate pooled SD assuming groups have the same means (TRUE) or different means (FALSE)</dd></dl>

Arguments

Author

grandSD — grandSD

<dl>

<dt>mean</dt>
<dd>Mean</dd>


<dt>sd</dt>
<dd>standard deviation</dd>


<dt>n</dt>
<dd>Sample size</dd>


<dt>equal</dt>
<dd>Logical: Whether to calculate pooled SD assuming groups have the same means (TRUE) or different means (FALSE)</dd>

</dl>

grandSD: grandSD

Description

Usage

Value

Arguments

Author

Examples