First argument must be a string array, character vector, or cell array of character vectors. First optional argument must be a string array, character vector, cell array of character vectors, logical array, or integer array. {0} values not supported for first input argument. Indices of elements to make unique must be positive integers. Index of element to make unique exceeds number of elements in first argument. The first argument and the logical array of indices to make unique must have the same number of elements. Second optional argument must be non-negative integer. Combination of input arguments cannot be made unique.