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Fig. 2 | International Journal of Behavioral Nutrition and Physical Activity

Fig. 2

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

Fig. 2

Biplots of complete and replaced datasets (20% zeros, 0.5 minutes replacement). Zeros replaced using simple, multiplicative, and lrEM replacement. Note that the use of the fixed value of 0.5 minutes to replace zeros only affects the simple and multiplicative replacement methods, whereas the lrEM method by construction replaces zeros with estimated values below the observation threshold. Individuals for which zeros have been imposed and replaced are indicated with a different color

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