hist: Histogram of Compositional Data

In nexus: Sourcing Archaeological Materials by Chemical Composition

Histogram of Compositional Data

Description

Produces an histogram of univariate ILR data (see Filzmoser et al., 2009).

Usage

## S4 method for signature 'CompositionMatrix'
hist(
  x,
  ...,
  select = 1,
  breaks = "Sturges",
  freq = FALSE,
  labels = FALSE,
  main = NULL,
  sub = NULL,
  ann = graphics::par("ann"),
  axes = TRUE,
  frame.plot = axes
)

Arguments

x	A CompositionMatrix object.
...	Further graphical parameters.
select	A length-one vector of column indices.
breaks	An object specifying how to compute the breakpoints (see graphics::hist()).
freq	A logical scalar: should absolute frequencies (counts) be displayed? If FALSE (the default), relative frequencies (probabilities) are displayed (see graphics::hist()).
labels	A logical scalar: should labels be drawn on top of bars? If TRUE, draw the counts or rounded densities; if labels is a character vector, draw itself.
main	A character string giving a main title for the plot.
sub	A character string giving a subtitle for the plot.
ann	A logical scalar: should the default annotation (title and x and y axis labels) appear on the plot?
axes	A logical scalar: should axes be drawn on the plot?
frame.plot	A logical scalar: should a box be drawn around the plot?

Value

hist() is called for its side-effects: is results in a graphic being displayed (invisibly return x).

Author(s)

N. Frerebeau

References

Filzmoser, P., Hron, K. & Reimann, C. (2009). Univariate Statistical Analysis of Environmental (Compositional) Data: Problems and Possibilities. Science of The Total Environment, 407(23): 6100-6108. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1016/j.scitotenv.2009.08.008")}.

See Also

Other plot methods: as_graph(), barplot(), pairs(), plot()

Examples

## Data from Aitchison 1986
data("hongite")

## Coerce to compositional data
coda <- as_composition(hongite)

## Boxplot plot
hist(coda, select = "A")
hist(coda, select = "B")

nexus documentation built on April 12, 2025, 1:24 a.m.