Cross Tabulation and Table Creation Description table uses cross-classifying factors to build a contingency table of the counts at each combination of factor levels. Usage table(..., exclude = if (useNA == "no") c(NA, NaN), useNA = c("no", "ifany", "always"), dnn = list.names(...), deparse.level = 1) as.table(x, ...) is.table(x) ## S3 method for class 'table' as.data.frame(x, row.names = NULL, ...