RSEIS (version 3.3-3)

get.slepians: Get Slepian Tapers

Description

Return a matrix of Slepian tapers

Usage

get.slepians(npoints = 900, nwin = 5, npi = 3)

Arguments

npoints

Number of points to return

nwin

Number of windows (default =5)

npi

Pi-Prolate numerber (3)

Value

• Matrix: nwin vectors of npoints Slepian tapers

Details

This function onlyu returns the tapers for inspection. To apply the tapers use the function mtapspec.

References

Lees, J. M. and Park, J., 1995: Multiple-taper spectral analysis: A stand-alone C-subroutine, Computers & Geology, 21(2), 199-236.

See Also

mtapspec

Examples

nwin <- 5
npi <- 3
npoints <- 900
sleps <- get.slepians(npoints, nwin, npi)

matplot(sleps, type='l', xlab="Index", ylab="Taper Amplitude")
legend('topleft', legend=1:nwin, lty=1:nwin, col=1:nwin)