B = topkrows (A, K) returns the top K rows of the 2-D categorical array A sorted in descending order as a group.

B = topkrows (A, K, col) returns the top K rows of the 2-D categorical array A sorted according to the columns specified by the numeric vector col, which must explicitly contain non-zero integers whose absolute values index existing columns in A. Positive elements sort the corresponding columns in ascending order, while negative elements sort the corresponding columns in descending order.

B = topkrows (A, K, direction) returns the top K rows of the 2-D categorical array A sorted according to direction, which can be either 'ascend' (default) or 'descend' applying to all columns in A. Alternatively, direction can be a cell array of character vectors specifying the sorting direction for each individual column of A, in which case the number of elements in direction must equal the number of columns in A.

B = topkrows (A, K, col, direction) returns the top K rows of the 2-D categorical array A sorted according to the columns specified in col using the corresponding sorting direction specified in direction. In this case, the sign of the values in col is ignored. col and direction must have the same length, but not necessarily the same number of elements as the columns in A.

Source Code: categorical