parent nodes: Factorial Array | How conduct a DOE | index | Indexch | IndexDoe | indexnl | Interactions | Orthogonal Array | Sitemap | Support


Main Help

Design of experiments (DOE)
How to conduct a DOE
Factorial Array
Edit factorial array
Rename Levels of DOE Factors
Adding repetitions
Block Levels
Sort data in subgroups
Anova DOE
Confirmation run
Response graphs
Response surface methodology

Full version of Develve
For commercial use

A interaction is when the result is not the sum of two factors. With an interaction it can occur that the result of the to factors is lower or higher as the sum of the result.
When using an Orthogonal array interactions are not included. The interactions have to be included in the array this can be calculated with Develve.
Be careful with adding interactions in a design:
with the typical crossing line
No interaction

For the interaction Dialog go to DOE=>Interactions

This Dialog is for selecting interaction that needs to be calculated in a Design of Experiment.


Data file

The Matrix indicates that Column C (pink means error) can not be used because that it is be used by the interaction. A bigger orthogonal matrix is needed. The indication of errors in the array is only been displayed when the check-box Check is on in the statistical mode plane.

With a bigger matrix it is possible to calculate the interaction.

The not used Columns can be removed. This is the result with measure data.

There is a interaction between Size and Weight and no interaction between Size and Color.

Adding a extra interaction between D and G the interaction dialogue will indicate that there is an error because both interactions interact with each other.

External links