Compare two tableplots (experimental)

Description

Two tableplots can be compared by substracting two tabplot-objects. The result is a tabplot_compare-object object in which absolute and relative differences of mean values are stored, as well as a comparison of frequency tables for categorical variables. This object can be plotted with plot.

Usage

## S3 method for class 'tabplot'
 tp1 - tp2

Arguments

Value

a tabplot_compare-object that contains information about the comparison tp1-tp2

Examples

# load diamonds dataset from ggplot2
require(ggplot2)
data(diamonds)

# calculate normalized prices to be used as sample probabilities
price.norm <- with(diamonds, price / max(diamonds$price))

# draw samples
exp.diamonds <- diamonds[sample(1:nrow(diamonds), size=10000, prob=price.norm, replace=TRUE),]
chp.diamonds <- diamonds[sample(1:nrow(diamonds), size=10000, prob=1-price.norm, replace=TRUE),]

tp1 <- tableplot(exp.diamonds)
tp2 <- tableplot(chp.diamonds)

plot(tp2 - tp1)

Results