build_edge_optimisation_matrix

data

graph

In case one wants to tweak something in the graph.

parameters


The elements are characters containing numbers, admix variable names,
parenthesis and arithmetical operations. (Transform into expressions with
<code><a rd-options="" href="/link/parse?package=admixturegraph&version=1.0.2" data-mini-rdoc="admixturegraph::parse">parse</a></code> and then evaluate with <code><a rd-options="" href="/link/eval?package=admixturegraph&version=1.0.2" data-mini-rdoc="admixturegraph::eval">eval</a></code>). The default
column names are the edge names from <code><a rd-options="" href="/link/extract_graph_parameters?package=admixturegraph&version=1.0.2" data-mini-rdoc="admixturegraph::extract_graph_parameters">extract_graph_parameters</a></code>,
the rows have no names.


Implements tools for building and visualising admixture graphs
and for extracting equations from them. These equations can be compared to f-
statistics obtained from data to test the consistency of a graph against data --
for example by comparing the sign of f_4-statistics with the signs predicted by
the graph -- and graph parameters (edge lengths and admixture proportions) can
be fitted to observed statistics.

Thomas Mailund

admixturegraph

Admixture Graph Manipulation and Fitting

build_edge_optimisation_matrix function


The elements are characters containing numbers, admix variable names,
parenthesis and arithmetical operations. (Transform into expressions with
<code><a rd-options='' href='parse'>parse</a></code> and then evaluate with <code><a rd-options='' href='eval'>eval</a></code>). The default
column names are the edge names from <code><a rd-options='' href='extract_graph_parameters'>extract_graph_parameters</a></code>,
the rows have no names.


build_edge_optimisation_matrix: Build a matrix coding the linear system of edges once the admix variables have been fixed.

Description

Usage

Arguments

Value