plot_stDPP: Plot spatio-temporal determinantal point process (DPP)...

In SepTest: Tests for First-Order Separability in Spatio-Temporal Point Processes

Plot spatio-temporal determinantal point process (DPP) realizations

Description

Produces diagnostic plots for spatio-temporal determinantal point process (DPP) simulations or fitted models. The function formats the plot title based on the spatial and temporal interaction parameters \alpha_s and \alpha_t, automatically displaying either the parameters themselves or their reciprocals when greater than 1.

Usage

plot_stDPP(data, type = c("3D", "space", "time"), alpha_s, alpha_t)

Arguments

data	A spatio-temporal point pattern object suitable for plot_stpp(), typically from the stpp or related packages.
type	Character string specifying the type of plot to produce. This is passed directly to plot_stpp(). Typical values are "3D", "space", and "time".
alpha_s	Numeric scalar (> 0). Spatial interaction parameter of the DPP model.
alpha_t	Numeric scalar (> 0). Temporal interaction parameter of the DPP model.

Details

If \alpha_s > 1 and \alpha_t > 1, the title displays \alpha_s^{-1} and \alpha_t^{-1}, which correspond to interaction ranges. Otherwise, the parameters are shown directly.

The function then calls plot.ST.pp() to produce the actual plot.

Value

No return value. The function is called for its side effect of producing a diagnostic plot.

Examples

# Simulate a stationary separable Matérn ST-DPP
sim <- rstDPP(
  mode     = "stationary",
  model    = "S",
  spectral = "matern",
  alpha_s  = 10,
  alpha_t  = 4.7,
  nu       = 2,
  eps      = 1,
  lambda_max = 70,
  grid_size  = 1.5
)
 plot_stDPP(sim, type = "3D",  alpha_s = 10, alpha_t = 4.7)

SepTest documentation built on Feb. 3, 2026, 5:07 p.m.