paretoChart {qAnalyst} | R Documentation |
function to plot Pareto charts
Description
paretoChart
plots Pareto charts for categorical variables. Plot is perfomed by lattice graphics.
Usage
paretoChart(x, mergeThr = 0.9, addLine = TRUE, abbrev = FALSE)
Arguments
x |
data vector treated as character variable |
mergeThr |
cumulated probability after which categories are merged into generic category "Other". |
addLine |
boolean. If true, cumulated frequency line is plot out |
abbrev |
boolean. If true, abbreviation of categories names written on x axis is done to obtain a better print. |
Details
Different categories are sorted by absolute frequency in decreasing order. Categories with same absolute frequency are sorted according to their appearing order in the given vector.
Value
paretoChart
returns no value
Note
A great part of this code comes from pareto.chart function of Luca Scrucca's qcc package.
Author(s)
Giorgio Spedicato
References
Montgomery, statistical quality control
See Also
No see also
Examples
#MASS data set example
require(MASS)
data(Cars93)
paretoData=Cars93$Manufacturer[1:45]
paretoChart(x=paretoData,mergeThr=.8)