plot.strata: Plot Method for Stratified Survey Design Objects

In stratifyR: Optimal Stratification of Univariate Populations

Plot Method for Stratified Survey Design Objects

Description

Visualises a stratified design. The "2d" mode draws a histogram with the fitted density overlaid and the strata shaded; "3d" and "interactive" render plotly views of the Neyman cost surface.

Usage

## S3 method for class 'strata'
plot(
  x,
  type = c("2d", "3d", "interactive"),
  data = NULL,
  n_pts = 512L,
  alpha = 0.25,
  palette = c("#4E79A7", "#F28E2B", "#E15759", "#76B7B2", "#59A14F",
    "#EDC948", "#B07AA1", "#FF9DA7", "#9C755F"),
  main = NULL,
  show_info = TRUE,
  ...
)

Arguments

x	A "strata" object.
type	"2d" (default), "3d", or "interactive".
data	Optional numeric vector of population values.
n_pts	Integer. Density grid size. Default 512L.
alpha	Numeric. Stratum fill transparency. Default 0.25.
palette	Character vector of stratum colours (recycled).
main	Character. Plot title (auto-generated if NULL).
show_info	Logical. Overlay a per-stratum information box on the "2d" plot. Default TRUE.
...	Passed to hist() or plotly::layout().

Value

Invisibly returns x for "2d"; a plotly widget for "3d" and "interactive".

Examples

## Not run: 
set.seed(1); y <- rgamma(2000, shape = 2, rate = 0.5)
res <- strata.data(y, h = 4, n = 400)
plot(res)
plot(res, type = "3d")
plot(res, type = "interactive")

## End(Not run)

stratifyR documentation built on Sept. 10, 2026, 5:07 p.m.