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Radar plot of inputs and outputs

Source: R/plot-io-radar.R
plot_io_radar.Rd

Draws a radar (spider) plot with one axis per input and output, each min-max scaled to [0, 1], and one closed polygon per DMU with straight edges. Polygons are coloured by efficient/inefficient status. A radial counterpart to plot_io_parcoo.

Usage

plot_io_radar(
  x,
  variables = "all",
  efficiency = c("crs", "vrs", "none"),
  orientation = "in",
  labels = "none",
  max.overlaps.value = 10,
  transparency = 0.7,
  fade = TRUE,
  subtitle = NULL,
  title = NULL,
  interactive = FALSE,
  ...
)

Arguments

x

A dea_data object, or a data frame coerced by as_dea_data.

variables

Which variables to show: "all" (default), "inputs", "outputs", or a vector of variable names or positions (positions index the inputs followed by the outputs).

efficiency

Efficiency model used to colour the DMUs by efficient/inefficient status: "crs" (default), "vrs" or "none".

orientation

Measurement orientation for the efficiency scores.

labels

DMU emphasis: "none" (default) or "all" draw every DMU normally; the name/id of a single DMU outlines that DMU's polygon in bold so it stands out. (Variable axis labels are always shown.)

max.overlaps.value

Accepted for API consistency; unused here (default 10).

transparency

Opacity of the markers/areas, a single number in [0, 1] (default 0.7).

fade

Controls the single-DMU focus view. When one DMU is given to labels, all other marks (and, for the network plots, everything outside that DMU's sub-network; for the panel biplot, the other trajectories) are faded so the chosen DMU stands out. TRUE (default) uses a sensible fade level; FALSE disables it; a single number in [0, 1] sets the alpha of the faded marks directly, where larger values fade them less (e.g. 0.4 leaves them more visible).

subtitle

Optional subtitle shown beneath the title.

title

Optional plot title.

interactive

Logical; if FALSE (default) a static ggplot2 radar; if TRUE an interactive plotly scatterpolar.

...

Additional arguments passed to geom_polygon (static mode).

Value

A ggplot2 object, or a plotly object when interactive = TRUE.

See also

plot_io_parcoo, compute_efficiency

Examples

df <- data.frame(
  dmu  = paste0("D", 1:6),
  i_x1 = c(4, 7, 8, 4, 2, 5),
  i_x2 = c(3, 3, 1, 2, 4, 2),
  o_y  = c(5, 8, 6, 7, 3, 9)
)
plot_io_radar(df, efficiency = "crs")