simulate_multiscale: Simulate Multi-center Multi-scale Concentric Ring Patterns

In BioGSP: Biological Graph Signal Processing for Spatial Data Analysis

Simulate Multi-center Multi-scale Concentric Ring Patterns

Description

Generate multi-center, multi-scale concentric ring simulation data. Creates patterns with inner circles and outer rings where the outer radius shrinks from a fixed starting point to a factor of the inner radius across multiple steps.

Usage

simulate_multiscale(
  grid_size = 60,
  Ra_seq = seq(2.5, 20, by = 2.5),
  n_steps = 10,
  n_centers = 1,
  outer_start = 40,
  outer_end_factor = 1.2,
  seed = NULL,
  verbose = TRUE
)

Arguments

grid_size	Size of the spatial grid (default: 60)
Ra_seq	Vector of inner circle radii (default: seq(2.5, 20, by = 2.5))
n_steps	Number of outer radius shrinkage steps (default: 10)
n_centers	Number of circle centers (default: 1)
outer_start	Fixed starting outer radius (default: 40)
outer_end_factor	Outer radius shrinks to this factor * Ra (default: 1.2)
seed	Random seed for reproducible center placement (default: 123)
verbose	Logical; if TRUE, show progress bar and messages (default: TRUE)

Value

List of data frames, each containing X, Y coordinates and signal_1, signal_2 binary signals

Examples

# Generate multi-center patterns with default parameters
patterns <- simulate_multiscale()

# Custom parameters
patterns <- simulate_multiscale(
  grid_size = 80,
  Ra_seq = seq(5, 25, by = 5),
  n_steps = 8,
  n_centers = 2,
  outer_start = 50
)

BioGSP documentation built on Feb. 2, 2026, 5:06 p.m.