fChange (version 2.1.0)

plot.dfts: Plot dfts objects

Description

Provides various visualizations for functional data.

Usage

# S3 method for dfts
plot(
  x,
  changes = NULL,
  type = c("spaghetti", "fast", "rainbow", "banded", "acf", "pacf", "summary", "qq",
    "distribution", "change", "interval", "surface"),
  plot_title = x$name,
  val_axis_title = NULL,
  res_axis_title = NULL,
  FD_axis_title = NULL,
  eye = NULL,
  aspectratio = NULL,
  showticklabels = TRUE,
  lag.max = 20,
  d.max = 2,
  alpha = 0.05,
  TVE = 0.95,
  distribution = c("norm"),
  method = c("Welch", "MC", "Imhof"),
  legend = TRUE,
  highlight_changes = TRUE,
  intervals = confidence_interval(x, changes),
  int.gradual = TRUE,
  ...
)

Value

Plot of varying types.

Arguments

x

A dfts object or data which can be automatically converted to that format. See dfts().

changes

Vector of numeric change point locations. Can be NULL.

type

Choice of plotting method. Options include: 'spaghetti', 'fast', 'rainbow','banded','acf', 'pacf', 'summary', 'qq', 'distribution', 'change', 'interval', and'surface'.

plot_title

Title to include on the return plot.

val_axis_title, res_axis_title, FD_axis_title

Title for the axis giving the values (val), the resolution of the fparam (res), and the functional observations (FD).

eye, aspectratio

Angle (eye) and ratio (aspectratio) to view 3d plots.

showticklabels

Boolean if the tick marks should be shown.

lag.max

Max number of lags to consider for ACF/PACF and summary plots.

d.max

Max number of dimensions for qq/distribution and summary plots.

alpha

Significance level to be used in various plots. Value in [0,1].

TVE

Total variance explained used in qq/distribution plots. Value in [0,1].

distribution

String of the distribution to compare against in. distribution plot. The string can be anything such that there is a rdistribution and ddistribution function available. For example 'exp', 'gamma'. Additional parameters can be passed using ... .

method

Method for computing ACF/PACF. Options include 'Welch', 'MC', and 'Imhof'.

legend

Boolean if legend should be given in qq/distribution plots.

highlight_changes

Boolean if changes should be highlighted in black.

intervals

Information on confidence intervals of changes for change plot. See confidence_interval().

int.gradual

Boolean if confidence interval be solid gray (FALSE) or gradual colors (TRUE) when type='change' plot.

...

Details for plotting in acf/pacf, summary, or distribution function.

References

John Fox, & Sanford Weisberg (2019). An R Companion to Applied Regression. Sage.

Examples

plt <- plot(electricity)
plt <- plot(dfts(var(electricity)), type = "surface")