7. Regression analysis
Once the significant influence of a factor (or interaction) has been demonstrated in the case of systematic selection of the levels of the controlled factor, it is natural to look for a function representing the phenomenon. The most frequent case is that of a monotonic function (increasing or decreasing), which can always be – by means of an anamorphosis, or – represented as a linear function. For example, the parabola y = ax
2
becomes a straight line y = at by setting
.
The Ultimate Scientific and Technical Reference
This article is included in
Instrumentation and measurement methods
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Regression analysis
