Hi, > Now I want to store t12 as a tab-delimited txt-file to use it in other > programm. How can I realize this? Did you take a look at the write.table() function ? You can supply «\t» as «sep» argument to get a tab-delimited file. Hope that helps, Julien -- Julien Barnier Groupe de recherche sur la socialisation ENS-LSH - Lyon, France