plotDFT: plot polar coordinates

Description Usage Arguments

View source: R/clusterTools.R

Description

Plots the components of a Discrete Fourier Transform (DFT) as polar coordinates (Re and Im of the complex numbers in the DFT). Arguments dft and col can be segmenTier timeseries and clustering objects.

Usage

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plotDFT(dft, col, cycles = 3, radius = 0.9, lambda = 1,
  bc = "component", ...)

Arguments

dft

the Fourier transform of a time series as returned by t(mvfft(t(timeseries))), or alternatively, a ‘timeseries’ object from segmenTier's processTimeseries when run with (use.fft=TRUE)

col

a color vector for the rows in argument dft or alternatively, ‘clustering’ object as returned by segmenTier's clusterTimeseries with coloring information

cycles

the number of cycles (index of non-DC DFT component) to be plotted

radius

radius of the polar plot circle as a fraction of data to be contained within the radius (smaller amplitude)

lambda

parameter for Box-Cox transformation of DFT data; has no effect for lambda==1

bc

type of Box-Cox transformation (if lambda!=1); "component": separate transformation of real and imaginary parts of the DFT; "amplitude": Box-Cox transformation of the amplitude

...

arguments to the base plot and/or points functions


raim/segmenTools documentation built on Nov. 9, 2018, 5:38 p.m.