tigerstats (version 0.1.6)

tSampler: Illustrating the t-statistic

Description

An app to explore the distribution of the t-statistic. The user takes one sample at a time from a given population. Graphical output updates the empirical distribution of the sample mean.

Usage

tSampler(form,data,max.sample.size=30,show.sample=FALSE)

Arguments

form

An object of class formula, of the form ~x, where x is a numeric variable from the data frame supplied by:

data

A dataframe, representing the imaginary population.

max.sample.size

Maximum sample size on the slider.

show.sample

If TRUE, the complete sample will be output to the console, in addition to the summary information.

Value

• Graphical and numerical output.

Examples

data(imagpop)
if (require(manipulate)) tSampler(~income,data=imagpop)