Re: [MORPHMET] How can I test the project for identification of unknown crania?

2018-04-02 Thread K. James Soda
Dear Dr. Ibrahim, As you note, standard LDA does not usually permit nested groupings. In this scenario, you would either need to have one LDA for sex and one LDA for ancestry OR you could have one LDA that classifies into compound sex-ancestry groups (i.e., male-Malay, female-Malay,

Re: [MORPHMET] How can I test the project for identification of unknown crania?

2018-04-02 Thread Dr.Abdelnasser Ibrahim
Dear Dr. Murat Maga, Thank you very much for your cooperation. It was very helpful. You already have 400 cases that you know the ancestry and sex, and you want to use this database to infer ancestry of two skulls, for which you already know the sex. All 400 cases, as well as your two unknown,

RE: [MORPHMET] How can I test the project for identification of unknown crania?

2018-04-02 Thread Murat Maga
We need to clarify a few things: You already have 400 cases that you know the ancestry and sex, and you want to use this database to infer ancestry of two skulls, for which you already know the sex. All 400 cases, as well as your two unknown, specimens have associated landmark data that were