Computes the standard deviation of a total IBD or segment count distribution.

Identity by Descent (IBD) distributions in pedigrees. A Hidden Markov
Model is used to compute identity coefficients, simulate IBD segments and
to derive the distribution of total IBD sharing and segment count across
chromosomes. The methods are applied in Kruijver (2025)
<doi:10.3390/genes16050492>. The probability that the total IBD sharing
is zero can be computed using the method of Donnelly (1983)
<doi:10.1016/0040-5809(83)90004-7>.

Maarten Kruijver

ibdsegments

Identity by Descent Probability in Pedigrees

sd function

<dl><dt>x</dt>
<dd>An object of class <code>total_ibd_dist</code> or <code>segment_count_dist</code>.</dd>
<dt>...</dt>
<dd>Additional arguments (not used).</dd></dl>

Arguments

Standard Deviation for IBD Distribution Objects — sd

<dl>

<dt>x</dt>
<dd>An object of class <code>total_ibd_dist</code> or <code>segment_count_dist</code>.</dd>


<dt>...</dt>
<dd>Additional arguments (not used).</dd>

</dl>

sd: Standard Deviation for IBD Distribution Objects

Description

Usage

Value

Arguments