Software aids experiment design

The new version of Design-Expert displays grid lines on 3D graph back planes, which provide a good perspective on the varying height of a response surface.

Stat-Ease has released Design-Expert 7.1 software for design of experiments (DOE).

Design-Expert 7.1 (DX7.1) is the perfect tool for engineers, researchers, quality professionals, Six Sigma practitioners, or other experimenters.

It is easy enough for novices to use, but has the power that advanced users seek.

DX7.1 includes a variety of features for the design and analysis of experiments.

The program's upfront power calculation feature for factorial designs provides the probability of seeing a desired difference (the signal) in a measured response, given the amount of noise in the process.

This knowledge could save an experimenter the embarrassment of pressing ahead with what will be a lost cause if there is excessive variability in the process and/or test.

Statisticians will benefit from the fraction of design space (FDS) graph for design evaluation.

It displays scaled prediction variance (SPV), which is quite useful for comparing alternative designs.

The new version of Design-Expert displays grid lines on 3D graph back planes, which provide a good perspective on the varying height of a response surface.

The program also now saves graphs in a large number of different formats for use in presentations and publications.

In addition, DX7.1 can handle up to 50 factors for screening and response surface methods (RSM) via minimum-run design matrices.

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