plot.irregFunData function

Plotting irregular functional data

This function plots observations of irregular functional data on their domain.

## S3 method for class 'irregFunData'
plot(
  x,
  y,
  obs = seq_len(nObs(x)),
  type = "b",
  pch = 20,
  col = grDevices::rainbow(length(obs)),
  xlab = "argvals",
  ylab = "",
  xlim = range(x@argvals[obs]),
  ylim = range(x@X[obs]),
  log = "",
  add = FALSE,
  ...
)

## S4 method for signature 'irregFunData,missing'
plot(x, y, ...)

Arguments

• x: An object of class irregFunData.

• y: Missing.

• obs: A vector of numerics giving the observations to plot. Defaults to all observations in x.

• type: The type of plot. Defaults to "b" (line and point plot). See plot for details.

• pch: The point type. Defaults to 20 (solid small circles). See par for details.

• col: The color of the functions. Defaults to the rainbow palette.

• xlab, ylab: The titles for x- and y-axis. Defaults to "argvals" for the x-axis and no title for the y-axis. See plot for details.

• xlim, ylim: The limits for x- and y-axis. Defaults to the total range of the data that is to plot. See plot for details.

• log: A character string, specifying the axis that is to be logarithmic. Can be ""

  (non-logarithmic axis, the default), "x", "y", "xy" or "yx". See plot.default for details. This parameter is ignored, if add = TRUE.

• add: Logical. If TRUE, add to current plot (only for one-dimensional functions). Defaults to FALSE.

• ...: Additional arguments to plot.

Examples

oldpar <- par(no.readonly = TRUE)

# Generate data
argvals <- seq(0,2*pi,0.01)
ind <- replicate(5, sort(sample(1:length(argvals), sample(5:10,1))))
object <- irregFunData(argvals = lapply(ind, function(i){argvals[i]}),
                  X = lapply(ind, function(i){sample(1:10,1) / 10 * argvals[i]^2}))

plot(object, main = "Irregular functional data")

par(oldpar)

See Also

plot.funData, irregFunData, plot