# Sliding Window Discrete Fourier Transform (SWDFT)

## Documentation for package ‘swdft’ version 1.0.0

- DESCRIPTION file.
- User guides, package vignettes and other documentation.

## Help Pages

coefficients.swdft_mod | Coefficients method for swdft_cosreg objects
complex_demod | Complex Demodulation
cosine | Cosine signal with adjustable parameters
cosine_taper | Cosine bell data taper
cosreg | Cosine regression
cov_swdft_cnum | Covariance between two complex-numbered outputs
demod_swdft | Demodulate a Fourier Frequency with the SWDFT
dirichlet | Dirichlet Kernel (Weight) for arbitrary summation indices
dirichlet_kernel | Dirichlet Kernel
fitted.swdft_mod | Fitted values method for swdft_cosreg objects
get_aphi | Extract amplitude and phase
get_freq_range | Get range of frequencies to search
get_loglik | Compute the log likelihood
get_max_freq | Get the maximum DFT coefficient
get_p_range | Get range of P's to search
get_sigma | Extract estimator of sigma
get_sl | Extract signal parameters
get_taper | Create taper for the SWDFT
lcr_loglik | Log Likelihood
local_cosreg | Local cosine regression
local_signal | Local Periodic Signal
matching_demod | Matching Demodulation
moving_average | Simple high pass filter
new_swdft | Constructor function for class 'swdft'
new_swdft2d | Constructor function for class 'swdft2d'
new_swdft3d | Constructor function for class 'swdft3d'
new_swdft_cosreg | Constructor function for class swdft_mod
new_swdft_demod | Constructor function for class 'swdft_demod'
new_swdft_local_cosreg | Constructor function for class 'swdft_local_cosreg'
new_swdft_matching_demod | Constructor function for class 'swdft_matching_demod'
plot.swdft | Plot method for 'swdft' object
plot.swdft_mod | Plot method for swdft_mod object
prou | The principal nth root of unity
residuals.swdft_mod | Residuals method for swdft_cosreg objects
sine | Sine signal with adjustable parameters
smooth_pgram | Smooth SWDFT coefficients with a convolution
smooth_swdft | Smooth the SWDFT coefficients
swdft | Sliding Window Discrete Fourier Transform
swdft2d | 2D Sliding Window Discrete Fourier Transform
swdft2d_fft | 2D Sliding Window Discrete Fourier Transform using base R
swdft2d_fftw | 2D Sliding Window Discrete Fourier Transform using fftw
swdft3d | 3D Sliding Window Discrete Fourier Transform
swdft_base_3d | 3D SWDFT using base R
swdft_fft | Sliding Window Discrete Fourier Transform with base R
swdft_fftw | Sliding Window Discrete Fourier Transform using fftw
swdft_to_props | Convert the SWDFT to proportions of frequency
unwrap_phase | Phase unwrapping