we have a question regarding Sawtooth's CCEA module. We want to run a consensus clustering on individual-level HB part-worths obtained from a CBC analysis (zero-centered diffs have been applied during the HB estimation).
Should the input file contain the respondents in rows and the attribute levels in columns? Do we also need the dual none-option as a separate column?
Furthermore, we do not understand how the so-called grand means are calculated. Is it correct, e.g., that we have to calculate the mean of the means over all groups for attribute level a?
Thank you very much for your answer.