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Surrogate methods

Random shuffle surrogates

Example

npts = 100
ts = sin.(diff(rand(npts + 1)))*0.5 .+ cos.(LinRange(0, 8*pi, npts))
p1 = plot(ts, label = "ts", lc = :black)
p2 = plot(randomshuffle(ts), label = "randomshuffle(ts)", xlabel = "Time step")
plot(p1, p2, layout = (2, 1))
ylabel!("Value");