# simplexPrepare: Draw 2-d probability simplex, with model lines for T3 or T1... In MSCquartets: Analyzing Gene Tree Quartets under the Multi-Species Coalescent

## Description

Outline the 2-d probability simplex, and draw the T1 or T3 model points for quartet frequencies. The models "T1" and "T3" are described more fully by \insertCiteMAR19;textualMSCquartets.

## Usage

 `1` ```simplexPrepare(model = "T3", maintitle = NULL, titletext = NULL) ```

## Arguments

 `model` `"T1"` or `"T3"`, for 1-tree or 3-tree model `maintitle` main title for plot `titletext` additional text for title

## References

\insertRef

MAR19MSCquartets

`simplexLabels`, `simplexPoint`, `simplexSegment`, `simplexText`, `simplexCoords`
 `1` ``` simplexPrepare("T3",maintitle="Main title",titletext="further text") ```