ternary_diagram {coda.plot} | R Documentation |
Ternary Diagram
Description
Generates a ternary diagram from compositional data, with options to center, scale, and color the points by group. Optionally overlays principal components.
Usage
ternary_diagram(
X,
group = NULL,
center = FALSE,
scale = FALSE,
show_pc = FALSE
)
Arguments
X |
A numeric matrix or data frame of compositional data with exactly three columns. |
group |
A factor or character vector indicating groups for color coding (optional). |
center |
Logical. Should the data be centered before plotting? Default is FALSE. |
scale |
Logical. Should the data be scaled to unit variance? Default is FALSE. |
show_pc |
Logical. If TRUE, principal components are overlaid. Default is FALSE. |
Value
A ggtern
plot object (inherits from ggplot
).
Examples
X = milk_cows[,5:7]
group = milk_cows$group
ternary_diagram(X, group = group)
[Package coda.plot version 0.1.9 Index]