computer science

Statgraphics

Statgraphics is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Statgraphics rather than just read about it. In short: Statgraphics is a statistics package that performs and explains basic and advanced statistical functions. History The software was created in 1980 by Dr.

Key takeaways

Statgraphics belongs to computer science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Statgraphics to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Statgraphics from memory before moving on to harder problems.

Reference excerpt

Statgraphics is a statistics package that performs and explains basic and advanced statistical functions.

History The software was created in 1980 by Dr. Neil W. Polhemus while on the Princeton University School of Engineering and Applied Science faculty as a teaching tool for his statistics students. It was made available to the public in 1982, becoming an early example of data science software designed for use on the PC.

Software

The flagship version of Statgraphics is Statgraphics Centurion, a Windows desktop application with capabilities for regression analysis, ANOVA, multivariate statistics, Design of Experiments, statistical process control, life data analysis, machine learning, and data visualization. The data analysis procedures include descriptive statistics, hypothesis testing, regression analysis, analysis of variance, survival analysis, time series analysis and forecasting, sample size determination, multivariate methods, machine learning and Monte Carlo techniques. The SPC menu includes many procedures for quality assessment, capability analysis, control charts, measurement systems analysis, and acceptance sampling. The program also features a DOE Wizard that creates and analyzes statistically designed experiments.

Applications

Statgraphics is frequently used for Six Sigma process improvement. The program has also been used in various health and nutrition-related studies. The software is heavily used in manufacturing chemicals, pharmaceuticals, medical devices, automobiles, food and consumer goods. It is also widely used in mining, environmental studies, and basic R&D.

Distribution Statgraphics is distributed by Statgraphics Technologies, Inc., a privately held company based in The Plains, Virginia.

See also List of statistical packages Comparison of statistical packages List of information graphics software

References

Illustrations

Worked examples

Example 1 — a first encounter with Statgraphics

Start with the simplest possible case. Write down what Statgraphics claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Statgraphics before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Statgraphics ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Statgraphics

In research: Statgraphics appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Statgraphics in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Statgraphics is common in secondary-school and first-year university syllabi. It links to neighbouring topics Science software for Windows, Statistical software, so understanding it makes those chapters shorter.
In everyday life: Look for Statgraphics outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Statgraphics in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Statgraphics means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Statgraphics out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Statgraphics in simple terms?

Statgraphics is a statistics package that performs and explains basic and advanced statistical functions. History The software was created in 1980 by Dr.

Why does Statgraphics matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Statgraphics?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Statgraphics.