Zero problems with compositional data of physical behaviors: a comparison of three zero replacement methods

• Main Authors: Charlotte Lund Rasmussen (Author), Javier Palarea-Albaladejo (Author), Melker Staffan Johansson (Author), Patrick Crowley (Author), Matthew Leigh Stevens (Author), Nidhi Gupta (Author), Kristina Karstad (Author), Andreas Holtermann (Author)
• Format: Book
• Published: BMC, 2020-10-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Abstract Background Researchers applying compositional data analysis to time-use data (e.g., time spent in physical behaviors) often face the problem of zeros, that is, recordings of zero time spent in any of the studied behaviors. Zeros hinder the application of compositional data analysis because...