Single-case (SCED) plot with phase overlays

Plots a single-subject time series with SCED-standard overlays: shaded phase panels, phase-change reference lines, per-phase mean lines, the baseline \(\pm\)2SD band, and per-phase split-middle celeration (trend) lines.

Usage

plotSCED(data, phase, overlays = c("mean", "2SD", "celeration"))

Arguments

data

Numeric vector of observations, in session order.

phase

Vector of phase labels (e.g. "A"/"B") the same length as data; phases are drawn in order of first appearance.

overlays

Which overlays to draw: any of "mean" (per-phase mean lines), "2SD" (baseline mean \(\pm\)2SD band) and "celeration" (split-middle trend lines). Default: all three.

Value

A ggplot object.

References

Kratochwill TR et al. (2010). Single-case designs technical documentation (What Works Clearinghouse).

See also

scedStats()

Examples

plotSCED(c(2, 3, 2, 3, 6, 7, 8, 7), rep(c("A", "B"), each = 4))