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2006 Jan 10
0
Representation of lmer objects will change soon
...new representation of linear mixed models based on the supernodal Cholesky factorization provided by Tim Davis's CHOLMOD library of sparse matrix code. This representation will be incompatible with the current representation, which uses a class of blocked compressed sparse matrices called the dBCMatrix class. If you have an lmer object created with the current code you will need to convert it to use it with the new package. By far the easiest way to do this is to recreate it. (The new code is very fast.) However, we will also offer a conversion function for those who no longer have the inform...
2006 Jan 10
0
Representation of lmer objects will change soon
...new representation of linear mixed models based on the supernodal Cholesky factorization provided by Tim Davis's CHOLMOD library of sparse matrix code. This representation will be incompatible with the current representation, which uses a class of blocked compressed sparse matrices called the dBCMatrix class. If you have an lmer object created with the current code you will need to convert it to use it with the new package. By far the easiest way to do this is to recreate it. (The new code is very fast.) However, we will also offer a conversion function for those who no longer have the inform...