STATISTICA Design of Experiments
General features
The options for analysing all factorial, response surface, and mixture designs are general in nature, can handle unbalanced and incomplete designs, and give the user full control of the choice of models to be fitted to the data. The program will compute the generalised inverse of the X'X matrix (where X stands for the design matrix) to determine the estimable effects, and the effects that are aliases of other effects. The program will then automatically report the table of aliases and compute the parameter estimates for all non-redundant effects. You can also manually "toggle" specific effects in and out of the current model quickly and easily, and observe the effect on the overall fit. All analyses can be performed in terms of recoded factor values or the original factor values, and a large number of output options are provided to review the parameter estimates, analysis of variance table, etc. Numerous additional options are provided for exploring the predicted (fitted) means, surfaces, etc.; these options will be further described in the context of the respective designs below.
The following modules are also included:
- Residual analyses and transformations
- Run your analyses from a Web browser Optimization of single or multiple response variables: The response (desirability) profiler
- Standard two-level 2**(k-p) fractional factorial designs with blocks (Box-Hunter-Hunter minimum aberration designs).
- Minimum aberration and maximum unconfounding 2**(k-p) fractional factorial designs with blocks: General design search
- Screening (Plackett-Burman) designs
- Mixed-level factorial designs
- Three-level 3**(k-p) fractional factorial designs with blocks and Box-Behnken designs
- Central composite (response surface) designs
- Latin squares
- Taguchi robust design experiments
- Designs for mixtures and triangular graphs
- Designs for constrained surfaces and mixtures
- D- and A-optimal designs
- Alternative procedures for analyzing data collected in experiments
More information on these modules can be found on the developer's web site.