topfreq: Calculate the single main frequency for a voltage time series

In LylChun/EPGminer: Analysis of EPG data

Calculate the single main frequency for a voltage time series

Description

The function topfreq calculates the single main frequency for voltage time series data using the Fast Fourier Transform.

Usage

topfreq(data, window = TRUE, filter = 0.25, pre_fft = FALSE)

Arguments

data	Either a voltage time series dataframe or a dataframe of Fourier transformed data with columns for frequency and amplitude. If the latter, change pre_fft to TRUE.
window	Default true will window the data before transforming.
filter	High pass filter indicating threshold frequency above which will be kept, and below which will be filtered out
pre_fft	TRUE/FALSE indicating whether or not the data being fed has been Fourier Transformed,

Details

The main frequency is defined as that which has the largest amplitude.

Value

The single main frequency and its amplitude is returned as a tibble object.

See Also

Other frequency related functions: mainfreqs(), plot_fbox(), plot_fft(), single_fft(), wave_topfreq()

LylChun/EPGminer documentation built on Aug. 28, 2023, 12:30 a.m.