Resample an fft using varying numbers of sine tapers
Produce an un-normalized psd based on an fft and a vector of optimal sine tapers
resample_fft_rcpp(fftz, tapers, verbose = TRUE, dbl = TRUE, tapcap = 1000L)
fftz |
complex; a vector representing the dual-length |
tapers |
integer; a vector of tapers |
verbose |
logical; should messages be given? |
dbl |
logical; should the code assume |
tapcap |
integer; the maximum number of tapers which can be applied; note that the length is automatically limited by the length of the series. |
To produce a psd estimate with our adaptive spectrum estimation method, we need only make one
fft calculation initially and then
apply the weighting factors given by parabolic_weights_rcpp, which this
function does.
fftz <- complex(real=1:8, imaginary = 1:8) taps <- 1:4 try(resample_fft_rcpp(fftz, taps))
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