Function nlme::lme in Ubuntu (but not Win or OS X): "Non-positive definite approximate variance-covariance"

Fri, Jun 7, 2013 6:50 AM

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Giuseppe Pagnoni Function nlme::lme in Ubuntu (but not Win or OS X): "Non-positive definite approximate variance-covariance" Jun 7 Dirk Eddelbuettel Function nlme::lme in Ubuntu (but not Win or OS X): "Non-positive definite approximate variance-covariance" Jun 7 Giuseppe Pagnoni Function nlme::lme in Ubuntu (but not Win or OS X): "Non-positive definite approximate variance-covariance" Jun 7