coord_tern

CoordTern

<code>coord_tern</code> is a function which creates a transformation mechanism between the ternary system, and, the cartesian system.
It inherits from the fixed coordinate system, employing fixed ratio between x and y axes once transformed.

datasets

Extends the functionality of 'ggplot2', providing the capability
to plot ternary diagrams for (subset of) the 'ggplot2' geometries. Additionally,
'ggtern' has implemented several NEW geometries which are unavailable to the
standard 'ggplot2' release. For further examples and documentation, please
proceed to the 'ggtern' website.

Nicholas Hamilton

ggtern

An Extension to 'ggplot2', for the Creation of Ternary Diagrams

coord_tern function

<dl><dt>Tlim</dt>
<dd>the range of T in the ternary space</dd>
<dt>Llim</dt>
<dd>the range of L in the ternary space</dd>
<dt>Rlim</dt>
<dd>the range of R in the ternary space</dd>
<dt>expand</dt>
<dd>If <code>TRUE</code>, the default, adds a small expansion factor to
the limits to ensure that data and axes don't overlap. If <code>FALSE</code>,
limits are taken exactly from the data or <code>xlim</code>/<code>ylim</code>.</dd></dl>

Arguments

ggtern:::rd_aesthetics("coord", "tern")
Abovementioned limitations include the types of geometries which can be used (ie approved geometries), 
or modifications to required aesthetic mappings. One such essential patch is, for approved geometries previously 
requiring <code>x</code> and <code>y</code> coordinates, now require an additional <code>z</code> coordinate, and, 
<code>geom_segment</code> goes one step further in that it requires both an additional 
<code>z</code> and <code>zend</code> coordinate mappings.
In essence, the required aesthetics are the product between what
is required of each 'layer' and what is required of the 'coordinate system'.

Aesthetics (Required in Each Layer)

Author

Ternary Coordinate System — coord_tern

<dl>

<dt>Tlim</dt>
<dd>the range of T in the ternary space</dd>


<dt>Llim</dt>
<dd>the range of L in the ternary space</dd>


<dt>Rlim</dt>
<dd>the range of R in the ternary space</dd>


<dt>expand</dt>
<dd>If <code>TRUE</code>, the default, adds a small expansion factor to
the limits to ensure that data and axes don't overlap. If <code>FALSE</code>,
limits are taken exactly from the data or <code>xlim</code>/<code>ylim</code>.</dd>

</dl>

ggtern:::rd_aesthetics("coord", "tern")
Abovementioned limitations include the types of geometries which can be used (ie approved geometries), 
or modifications to required aesthetic mappings. One such essential patch is, for approved geometries previously 
requiring <code>x</code> and <code>y</code> coordinates, now require an additional <code>z</code> coordinate, and, 
<code>geom_segment</code> goes one step further in that it requires both an additional 
<code>z</code> and <code>zend</code> coordinate mappings.
In essence, the required aesthetics are the product between what
is required of each 'layer' and what is required of the 'coordinate system'.

coord_tern: Ternary Coordinate System

Description

Usage

Value

Arguments

Aesthetics (Required in Each Layer)

Author