plotLfit function

Plot distributions fitted with L-moments

Plot histogram and distribution densities or ecdf with cumulated probability

plotLfit(
  dlf,
  nbest = 5,
  selection = NULL,
  order = TRUE,
  rmse = 4,
  cdf = FALSE,
  log = FALSE,
  supportends = TRUE,
  breaks = 20,
  xlim = extendrange(dlf$dat, f = 0.15),
  ylim = NULL,
  col = "grey",
  main = paste(if (cdf) "Cumulated", "density distributions of", dlf$datname),
  xlab = dlf$datname,
  ylab = if (cdf) "(Empirical) Cumulated Density (CDF)" else
    "Probability Density Function (PDF)",
  las = 1,
  distcols = berryFunctions::rainbow2(nbest),
  lty = 1,
  add = FALSE,
  logargs = NULL,
  legend = TRUE,
  legargs = NULL,
  histargs = NULL,
  ...
)

Arguments

• dlf: List as returned by distLfit, containing the elements dat, parameter, gof, datname

• nbest: Number of distributions plotted, in order of goodness of fit. DEFAULT: 5

• selection: Names of distributions in dlf$parameter that will be drawn. Overrides nbest. DEFAULT: NULL

• order: Logical: order legend and colors by RMSE, even if dlf$gof is unordered or selection is given? DEFAULT: TRUE

• rmse: Integers. If rmse != 0, RMSE values are added to legend. They are rounded to rmse digits. DEFAULT: 4

• cdf: If TRUE, plot cumulated DF instead of probability density. DEFAULT: FALSE

• log: If TRUE, logAxis is called. Only makes sense if dlf$dat is already logarithmic and ranges eg. from -2 to 3. DEFAULT: FALSE

• supportends: If TRUE, dots are placed at the support bounds. DEFAULT: TRUE

• breaks: hist breaks. DEFAULT: 20

• xlim, ylim: hist or ecdf axis limits.

• col: hist bar color or ecdf point color. DEFAULT: "grey"

• main, xlab, ylab: hist or ecdf main, xlab, ylab. DEFAULT: abstractions from dlf$datname

• las: Label Axis Style for orientation of numbers along axes. DEFAULT: 1

• distcols: Color for each distribution added with lines. DEFAULT: rainbow2

• lty: Line TYpe for plotted distributions. Recycled vector of length nbest. DEFAULT: 1

• add: If TRUE, hist/ecdf is not called before adding lines. This lets you add lines highly customized one by one. DEFAULT: FALSE

• logargs: List of arguments passed to logAxis if log=TRUE. DEFAULT: NULL

• legend: Should legend be called? DEFAULT: TRUE

• legargs: List of arguments passed to legend except for legend and col. DEFAULT: NULL

• histargs: List of arguments passed to hist or ecdf

  except for x, freq. DEFAULT: NULL

• ...: Further arguments passed to lines, like type, pch, ...

Returns

invisible dlf object, see printL

Details

By default, this plots density instead of CDF, because the distributions are easier to discern and tail behavior is easier to judge visually.

Examples

# See distLfit

See Also

distLfit, plotLquantile

Author(s)

Berry Boessenkool, berry-b@gmx.de , Sept 2014