Issue 7, 1997

Visualisation of Confidence in Two-factor Designs Where Model, Replication and Star Points are Varied

Abstract

Confidence in predictions over an experimental domain can be calculated using the known experimental error and a function that relates to the shape of the confidence bands, often called leverage. In this paper, leverage is calculated for two-factor designs based on the central composite design, changing the nature of the model, the position of the star points and the number of replicates in the centre. The shapes of the graphs of leverage are presented. Several conclusions can be deduced, for example, for many common arrangements of experiments, such as the case where three replicates are taken in the centre; confidence is not highest in the centre of experimentation.

Article information

Article type
Paper

Analyst, 1997,122, 621-630

Visualisation of Confidence in Two-factor Designs Where Model, Replication and Star Points are Varied

P. W. Araujo and R. G. Brereton, Analyst, 1997, 122, 621 DOI: 10.1039/A700135E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements