TED (version 1.0)

cbfs_red: Generate an artificial event with red noise

Description

This function generates a box, cliff-ramp, ramp-cliff or a sine function with red noise (AR(1)) as the background noise. Length of the generated event is 128.

Usage

cbfs_red(type = c("box", "rc", "cr", "sine"), A = 10, s = 1,
  coeff = 0.5)

Arguments

type

type of the event to be generated. There are four options: ``box', ``rc',``cr',``sine' representing a box, cliff-ramp, ramp-cliff or a sine function.

A

amplitude of the event; default is 10.

s

standard deviation of the AR(1) model innovations. Default is 1.

coeff

coefficient of the AR(1) process, which is used to control the level of red noise. Default is 0.5.

Value

• an artificial event with red noise.

Examples

# generate a box function with red noise
set.seed(123)
x = cbfs_red(type = 'box', coeff=0.5, s=1, A=10)
# plot it
plot(x,type='l',xlab='t',ylab='x')