plotLfit: Plot distributions fitted with L-moments

Description

Plot histogram and distribution densities or ecdf with cumulated probability

Usage

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 fom 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, ...

Value

invisible dlf object, see printL

Details

By default, this plots density instead of CDF, because the distributions are easier to discern and tail behaviour is easier to judge visually. See also http://www.vosesoftware.com/ModelRiskHelp/index.htm#Presenting_results/Cumulative_plots/Relationship_between_cdf_and_density_(histogram)_plots.htm

Examples

Run this code

 # See distLfit