inst/examples/ex-annuli.r

In corybrunson/tdaunif: Uniform Manifold Samplers for Topological Data Analysis

set.seed(99812L)

# Uniformly sampled unit disk in 2-space
x <- sample_disk(1800, sd = 0)
plot(x, asp = 1, pch = 19, cex = .5)

# Uniformly sampled unit disk in 2-space with Gaussian noise
x <- sample_disk(1800, sd = .1)
plot(x, asp = 1, pch = 19, cex = .5)

# Uniformly sampled annulus
x <- sample_annulus(100, r = .4, sd = 0)
plot(x, asp = 1, pch = 19, cex = .5)