<B>Contents</B>: <B>Introduction</B>: Motivation
The Need of Interactive Environments
Modern Computer Soft- and Hardware
<B>Exploratory</B> <B> Statistical Techniques</B>: Descriptive Statistics
Some Stratifications
Boxplots
Quantile-Quantile Plot
Histograms, Regressograms and Charts
Bivariate Plots
Scatterplot Matrices
Three Dimensional Plots
Higher Dimensional Plots
Basic Properties for Graphical Windows
<B>Some </B> <B>Statistical</B> <B> Applications</B>: Cluster Analysis
Teachware
Regression Methods
<B>Exploratory Projection</B> <B>Pursuit</B>: Motivation and History
The Basis of Exploratory Projection Pursuit
Application to the Swiss Banknote Dataset
Multivariate Exploratory Projection Pursuit
Discrete Exploratory Projection Pursuit
Requirements for a Tool Doing Exploratory Projection Pursuit
<B>Data</B> <B>Structures</B>: For Graphical Objects
For Data Objects
For Linking
Existing Computational Environments
<B>Implementation in XploRe</B>: Data Structures in XploRe 3.2
Selected Commands in XploRe 3.2
Selected Tools in XploRe 3.2
Data Structure in XploRe 4.0
Commands and Macros in XploRe 4.0
<B>Conclusion</B>.