A comparison of standard and compositional data analysis in studies addressing group differences in sedentary behavior and physical activity

• Автори: Nidhi Gupta (Автор), Svend Erik Mathiassen (Автор), Glòria Mateu-Figueras (Автор), Marina Heiden (Автор), David M. Hallman (Автор), Marie Birk Jørgensen (Автор), Andreas Holtermann (Автор)
• Формат: Книга
• Опубліковано: BMC, 2018-06-01T00:00:00Z.
• Предмети: article
• Онлайн доступ: Connect to this object online.

Abstract Background Data on time spent in physical activity, sedentary behavior and sleep during a day is compositional in nature, i.e. they add up to a constant value. Compositional data have fundamentally different properties from unconstrained data in real space, and require other analytical proc...