In MATLAB, managing arrays efficiently is a common task for various computational and analytical purposes. Arrays may often contain duplicate elements, which can interfere with analyses or computations. To address this, MATLAB provides a straightforward method to remove duplicates from an array using the unique function. This Answer will guide us through removing duplicates from an array in MATLAB, providing examples and explanations.
unique functionThe unique function in MATLAB is designed to identify and remove duplicate elements from an array. It returns unique elements of an array, sorted in ascending order by default. The syntax of the unique function is as follows:
[B] = unique(A)
Where:
A is the input array.
B is the output array containing unique elements of A.
unique functionLet’s consider a simple example to demonstrate how to use the unique function to remove duplicates from an array:
A = [5 2 9 5 2 8 9];[B] = unique(A);disp(B);
Line 1: We declare and initialize an array A.
Line 2: The unique function is called with the array A as its input. The unique function returns unique elements of A that are stored in an array B.
Line 3: We display the array B.
The unique function in MATLAB provides a convenient and efficient way to remove duplicates from arrays, which is a common requirement in various computational tasks. By understanding the syntax and behavior of the unique function, users can easily manipulate arrays to extract only the unique elements while retaining crucial indexing information.
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