Re: [R] mixed effects models with nested factors

tor? All the best, Luis Luis Cayuela Departamento de Ecología Universidad de Alcalá Crta. de Barcelona km. 33,600 E-28871 Alcalá de Henares Madrid España Tlf: (+0034) 918856407 Fax: (+0034) 918854929 - Original Message - From: "Douglas Bates" <[EMAIL PROTECTED]> To: &qu

[R] mixed effects models with nested factors

r 5 in downdated X'X is not positive definite I would appreciate some help to fit this model. Thanks to everybody, Luis Luis Cayuela Departamento de Ecología Universidad de Alcalá Crta. de Barcelona km. 33,600 E-28871 Alcalá de Henares Madrid España Tlf: (+0034) 918856407 Fax: (+0034