Hi everyone,

Does the selfstart function SSlogis of the "nlme" library  allows the introduction of time  varying covariates ?
For example how can I interpret the xmid parameter (reperesenting the age at which we reach the half of the asymptote) if I want to explain it by a some time varying covariate?

Thanks in adavance,

Abderrahim


Abderrahim Oulhaj, Phd in Statistics
Oxford University
Department of Pharmacology
Mansfield Road
Oxford OX1 3QT
Tel:  +44 1865 224098
Fax: +44 1865 224099
Email: abderrahim.oulhaj@pharmacology.oxford.ac.uk


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