Compute Corrected Cutoff Frequency for Filter — compute_cutoff

This function computes the corrected cutoff frequency for a lowpass or highpass filter using the correction factor by David A. Winter. For highpass filters, Robertson's high-pass modification is applied.

Usage

compute_cutoff_correction(
  filter_passes = 2,
  cutoff_frequency = 20,
  sampling_frequency = 200,
  type = "lowpass"
)

Arguments

filter_passes: Integer. The number of passes of the filter. Default is 2.
cutoff_frequency: Numeric. The cutoff frequency in Hz. Default is 6 for lowpass.
sampling_frequency: Numeric. The sampling frequency in Hz. Default is 200.
type: Character. The type of filter. Must be either "lowpass" or "highpass". Default is "lowpass".

Value

Numeric. The corrected cutoff frequency in Hz.