numeric artefact in symmetric matrices when sub-groups are unbalanced

epiforecasts / socialmixr

R package for deriving social mixing matrices from survey data.

http://epiforecasts.io/socialmixr/

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numeric artefact in symmetric matrices when sub-groups are unbalanced #146

Closed lwillem closed 1 week ago

lwillem commented 4 weeks ago

Included a warning when the normalization weights to obtain a symmetric matrix exceed a threshold (default 2), as this can cause unexpected inflation or deflation of the contact rates. The root of this issue lies in sparse data and unbalanced sub-groups.

See #145