Trellis plots as visual aids for analyzing split plot experiments

Murat Kulahci, Anil Menon

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The analysis of split plot experiments can be challenging due to a complicated error structure resulting from restrictions on complete randomization. Similarly, standard visualization methods do not provide the insight practitioners desire to understand the data, think of explanations, generate hypotheses, build models, or decide on next steps. This article demonstrates the effective use of trellis plots in the preliminary data analysis for split plot experiments to address this problem. Trellis displays help to visualize multivariate data by allowing for conditioning in a general way. They can also be used after the statistical analysis for verification, clarification, and communication.
Original languageEnglish
JournalQuality Engineering
Volume29
Issue number2
Pages (from-to)211-225
ISSN0898-2112
DOIs
Publication statusPublished - 2017

Keywords

  • Graphical tools
  • Preliminary data analysis
  • Process understanding
  • Restriction on randomization
  • Split-plot designs

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