viz_confidence {dimensio} | R Documentation |
Confidence Ellipses
Description
Plots confidence ellipses.
Usage
viz_confidence(x, y, ...)
wrap_confidence(x, y, ...)
## S4 method for signature 'numeric,numeric'
viz_confidence(
x,
y,
...,
group = NULL,
level = 0.95,
color = NULL,
fill = FALSE,
symbol = FALSE
)
## S4 method for signature 'MultivariateAnalysis,missing'
viz_confidence(
x,
...,
group = NULL,
level = 0.95,
color = NULL,
fill = FALSE,
symbol = FALSE
)
## S4 method for signature 'MultivariateBootstrap,missing'
viz_confidence(
x,
...,
level = 0.95,
color = FALSE,
fill = FALSE,
symbol = FALSE
)
## S4 method for signature 'PCOA,missing'
viz_confidence(
x,
...,
axes = c(1, 2),
group = NULL,
level = 0.95,
color = NULL,
fill = FALSE,
symbol = FALSE
)
## S4 method for signature 'numeric,numeric'
wrap_confidence(x, y, group = NULL, level = 0.95)
## S4 method for signature 'MultivariateAnalysis,missing'
wrap_confidence(
x,
margin = 1,
axes = c(1, 2),
group = NULL,
level = 0.95,
principal = TRUE
)
## S4 method for signature 'PCOA,missing'
wrap_confidence(x, axes = c(1, 2), group = NULL, level = 0.95)
Arguments
x , y |
A |
... |
Further graphical parameters to be passed to
|
group |
A vector specifying the group an observation belongs to. |
level |
A |
color |
The colors for borders (will be mapped to |
fill |
The background colors (will be mapped to |
symbol |
A vector of symbols (will be mapped to |
axes |
A length-two |
margin |
A length-one |
principal |
A |
Value
wrap_confidence()
returns a data.frame
of envelope x
and y
coordinates. An extra column named group
is added specifying the group an
observation belongs to.
viz_confidence()
is called for its side-effects: it results in a graphic
being displayed. Invisibly returns x
.
Author(s)
N. Frerebeau
See Also
Other envelopes:
viz_ellipses()
,
viz_hull()
,
viz_tolerance()
Examples
## Load data
data("iris")
## Compute principal components analysis
X <- pca(iris, scale = TRUE, sup_quali = "Species")
## Compute confidence ellipse coordinates
conf <- wrap_confidence(X, margin = 1, group = "Species", level = 0.95)
## Plot confidence ellipses
col <- c("#004488", "#DDAA33", "#BB5566")
viz_rows(X, extra_quali = iris$Species, color = col)
viz_confidence(X, group = iris$Species, color = col, level = 0.95)