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Pairwise scatter plots of inputs, outputs and efficiency scores

Source: R/plot-io-scatter.R
plot_io_scatter.Rd

Builds the pairwise scatter plots of a chosen set of columns: any subset of the inputs and outputs, plus optionally one or more efficiency scores. For k selected columns it draws all choose(k, 2) pairwise panels. For example, selecting one input, one output and the CRS score gives three panels.

Usage

plot_io_scatter(
  x,
  vars = NULL,
  efficiency = NULL,
  color = c("crs", "vrs", "drs", "irs", "fdh", "add", "none"),
  correlation = TRUE,
  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.

vars

Character vector of input/output column names to include. Defaults to all inputs and outputs.

efficiency

Optional character vector of efficiency models to compute and include as columns, any of "crs", "vrs", "drs", "irs", "fdh", "add".

color

Efficiency model used to colour points by efficient/inefficient status: one of "crs" (default), "vrs", "drs", "irs", "fdh", "add", or "none".

correlation

Logical; if TRUE (default) the Pearson correlation is printed in the top-left corner of each panel.

orientation

Measurement orientation used when computing efficiency scores.

labels

Which DMUs to label: "none" (default), "all", "max.overlaps", or the name/id of a single DMU to highlight it. (Uses geom_text with overlap-thinning rather than ggrepel, since repel is unsafe inside facets.)

max.overlaps.value

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

transparency

Point alpha 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; static ggplot2 (default) or interactive plotly.

...

Additional arguments passed to geom_point.

Value

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

See also

dea_data, 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_scatter(df, vars = c("x1", "y"), efficiency = "crs")