It is a list containing i) an ordinal toy data matrix simulated acccording to OLBM and ii) the row/column cluster assignments. To see how the data are simulated, you can type "?simu.olbm" in the R console and look at "Examples".
data(olbm_dat)
A list containing three items.
: an ordinal data matrix simulated according to OLBM.
: the actual row cluster assignments.
: the actual column cluster assignments.