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...t missing data. Do you know how they deal with them? I cannot find any explanation, only that I can have some missing data. Do they skip the missing data or do they code them by "0"? And what about 2 types of missing data: not presented items and not answered items? Thank you for reply, Mariagiulia Mariagiulia Matteucci Dipartimento di Scienze Statistiche ?Paolo Fortunati? Universit? di Bologna Via Belle Arti, 41 40126 Bologna (ITALY) e-mail: matteucci at stat.unibo.it TEL: +39 051 264182 FAX: +39 051 232153

...ge: Error in as.matrix.mcmc(x) : the lenght of'dimnames' [2] doesn't coincide with the array extension More: Warning message: the number of elements to replace is not a multiple of the lenght of replacement I cannot interpret this warning message, thank you for help or suggestions! Mariagiulia Mariagiulia Matteucci Dipartimento di Scienze Statistiche ?Paolo Fortunati? Universit? di Bologna Via Belle Arti, 41 40126 Bologna (ITALY) e-mail: matteucci at stat.unibo.it TEL: +39 051 272503 FAX: +39 051 232153

Hello, does anyone know something about missing data in the MCMC pack? thank you, Mariagiulia Mariagiulia Matteucci Dipartimento di Scienze Statistiche ?Paolo Fortunati? Universit? di Bologna Via Belle Arti, 41 40126 Bologna (ITALY) e-mail: matteucci at stat.unibo.it TEL: +39 051 264182 FAX: +39 051 232153