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Design-Expert v11
What’s New
Installation
Getting Started
Tutorials
Designs
Pre-Experiment
Analysis
Optimization
Post Analysis
Hints and FAQs
Creating a Design
Putting Data In and Getting Results Out
Making Output Look Nice
Interpreting the Analysis
Coping with Unusual Outcomes
When All Else Fails
Support
Credits
Design-Expert
» Hints and FAQs
Hints and FAQs
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Creating a Design
Entering Missing data
Changes to the design
Can’t run one combination of factor levels
Messed-up coding levels
Planning a two-factor experiment
Too many runs on Multilevel Categoric designs
How Many Levels Do I Need?
Putting Data In and Getting Results Out
Importing/Exporting Data
Analyzing historical data (data mining)
View alias structure for pre-existing design
Fitting more than one model to a response
Journaling
Making Output Look Nice
Formatting Data
Display problems - lines breaking on reports
Interpreting the Analysis
No significant effects
Green triangles on Half Normal Plot
Working with Factorial Screening Designs
Working with Mixture screening Designs
Coping with Unusual Outcomes
No lack-of-fit info
Predicted R-squared more than 0.2 lower than Adjusted R-squared
Negative Adjusted R-squared
Zero desirability in numerical optimization
Different results than outside calculations
When All Else Fails
Try Right-Clicking
Stat-Ease Direct Support
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