archetypes: archmap – R documentation

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archmap

Archetypal maps

Description

Two-dimensional projection of the observations based on the alpha coefficients into a space spanned by the (projected) archetypes.

Usage

archmap(object, projection = simplex_projection, projection_args = list(),
  rotate = 0, cex = 1.5, col = 1, pch = 1, xlab = "", ylab = "",
  axes = FALSE, asp = TRUE, ...)

Arguments

`object`	An `archetypes` object
`projection`	Projection function; see `archmap_projections`
`projection_args`	Arguments passed to the projection function; see `archmap_projections`
`rotate`	Rotation angle to rotate the projection
`cex`	Character expansion of archetypes
`col`	Color of observations
`pch`	Point character of observations
`xlab`	A label for the x-axis
`ylab`	A label for the y-axis
`axes`	Logical value to draw axes or not
`asp`	The y/x aspect ratio
`...`	Arguments passed to the underlying plot function

Value

Invisible matrix with the projected archetypes

Examples

## Not run: 
  data("skel", package = "archetypes")
  skel2 <- subset(skel, select = -Gender)

  set.seed(1981)
  a <- archetypes(skel2, k = 5)

  ## Simplex projection:
  archmap(a, col = skel$Gender)

  ## Simplex projection with archetypes arranged according to their
  ## distances:
  archmap(a, col = skel$Gender,
          projection = tspsimplex_projection)
  archmap(a, col = skel$Gender,
          projection = tspsimplex_projection,
          projection_args = list(equidist = TRUE))

  ## MDS projection:
  archmap(a, col = skel$Gender,
          projection = atypes_projection)

## End(Not run)

archetypes

Archetypal Analysis

v2.2-0.1

GPL (>= 2)

Authors

Manuel J. A. Eugster [aut, cre], Friedrich Leisch [aut], Sohan Seth [ctb]

Initial release

2014-04-08