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Plot the Fourier Transform of the
plot_ft(X, xi_interval, ft_plot.resol = 500)
A ggplot object representing the plot of the Fourier transform.
A numerical vector of sample data.
A list containing the lower (xi_lb) and upper (xi_ub) bounds of the xi interval.
xi_lb
xi_ub
An integer representing the resolution of the plot, specifically the number of points used to represent the Fourier transform. Defaults to 500.
C = 1, the parameter in \(O(1/n^{0.25})\), see more details in in Schennach (2020).
plot_ft( sample_data$X, xi_interval = list(xi_lb = 1, xi_ub = 50), ft_plot.resol = 1000 )
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