qfa.plot {qfa}

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
)

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

Value

no return value