May I suggest that the method as.data.frame.table not have the name "Freq" hardwired as the response name? This is a problem if "Freq" is already the name of a stimulus factor.
Here is the existing function: as.data.frame.table <- function (x, row.names = NULL, optional = FALSE, ...) { x <- as.table(x) data.frame(do.call("expand.grid", dimnames(x)), Freq = c(x), row.names = row.names) } My suggested fix is as.data.frame.table <- function (x, row.names = NULL, optional = FALSE, responseName = "Freq", ...) { x <- as.table(x) ex <- Quote(data.frame(do.call("expand.grid", dimnames(x)), Freq = c(x), row.names = row.names)) names(ex)[3] <- responseName eval(ex) } This should be no slower and should break no existing code. Bill Venables, ______________________________________________ R-devel@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-devel