Average spectrum of an evolutive MESA

Averages the spectra of all window positions of an evolutive MESA (mesa_evolutive): the average amplitude spectrum, shown beside the spectral image in many cyclostratigraphic workflows. Amplitude is the square root of the power.

Usage

mesa_average(x, window = 1, normalise = TRUE)

Arguments

x

Evolutive MESA, the output of mesa_evolutive. Required (no default).

window

Which window length of x is averaged (numeric): either the window length itself (as given to mesa_evolutive) or its number, i.e. its position in x$windows. Default=1.

normalise

Divide the spectrum of every window position by its maximum before averaging, so that all positions weigh equally (logical, TRUE or FALSE). Default=TRUE.

Value

data frame with frequency, period and amplitude.