qfa (version 4.0)

qfa.plot: Quantile-Frequency Plot

Description

This function creates an image plot of quantile spectrum.

Usage

qfa.plot(
  freq,
  tau,
  rqper,
  rg.qper = range(rqper),
  rg.tau = range(tau),
  rg.freq = c(0, 0.5),
  color = colorRamps::matlab.like2(1024),
  ylab = "QUANTILE LEVEL",
  xlab = "FREQUENCY",
  tlab = NULL,
  set.par = TRUE,
  legend.plot = TRUE
)

Value

no return value

Arguments

freq

sequence of frequencies in (0,0.5) at which quantile spectrum is evaluated

tau

sequence of quantile levels in (0,1) at which quantile spectrum is evaluated

rqper

real-valued matrix of quantile spectrum evaluated on the freq x tau grid

rg.qper

zlim for qper (default = range(qper))

rg.tau

ylim for tau (default = range(tau))

rg.freq

xlim for freq (default = c(0,0.5))

color

colors (default = colorRamps::matlab.like2(1024))

ylab

label of y-axis (default = "QUANTILE LEVEL")

xlab

label of x-axis (default = "FREQUENCY")

tlab

title of plot (default = NULL)

set.par

if TRUE, par() is set internally (single image)

legend.plot

if TRUE, legend plot is added