This is a utility function to calculate the x-coordinate of a point in barycentric coordinates.
It is unlikely that the user will want to use this function directly.

A suite of functions for visualising ternary probabilistic forecasts, as discussed in the paper by Jupp (2012) <doi:10.1098/rsta.2011.0350>.

Tim Jupp

ternvis

Visualisation, Verification and Calibration of Ternary
Probabilistic Forecasts

xf function

<dl> <dt>p</dt>
<dd>An n-by-3 matrix of ternary forecasts.</dd> <dt>M</dt>
<dd>A 2-by-3 matrix describing the transfromation for R^3 to R^2.</dd></dl>

Arguments

Author

x coordinate of a ternary forecast in barycentric coordinates — xf

<dl>

 <dt>p</dt>
<dd>An n-by-3 matrix of ternary forecasts.</dd>

 <dt>M</dt>
<dd>A 2-by-3 matrix describing the transfromation for R^3 to R^2.</dd>

</dl>

xf: x coordinate of a ternary forecast in barycentric coordinates

Description

Usage

Value

Arguments

Author

References

See Also

Examples