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International Journal of Bipolar Disorders

Table 4 Discriminant analysis: structure matrix showing pooled within-group correlations between discriminating variables and standardized canonical discriminant functions

From: A pilot study to determine whether combinations of objectively measured activity parameters can be used to differentiate between mixed states, mania, and bipolar depression

Activity parameter

Function

1

2

SD in % of mean activity count (morning period)

−.41

 

Sample entropy (morning period)

.35

 

Fourier analysis (2–8 min/8–64 min of the evening period)

 

−.53

Autocorrelation (evening period)

 

.44

Sample entropy (evening period)

 

−.38

SD in  % of mean activity count (evening period)

 

.36

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