Matlab find index. Sep 21, 2016 · I would avoid using find here. 5k 28 105 195 ...
Matlab find index. Sep 21, 2016 · I would avoid using find here. 5k 28 105 195 MATLAB uses 1-based indexing, so it should read index(1) in your loop solution – Amro Jul 20, 2012 at 13:38 Similar to: Find the location and determine the corresponding value of another array having the same location of one array Feb 13, 2026 · MATLAB array indexing starts at 1. This way if you encounter unexpected results you can set a breakpoint on the line where you perform the indexing and examine each individual condition to determine whether or not that logical array matches the rows you Apr 2, 2011 · Indexing is closely related to another term MATLAB users often hear: vectorization. For example, find the index of an element equal to 5 in a 1-by-11 vector of integers. MATLAB can address elements with either linear indices or subscript indices (row, column, and higher dimensions). Nov 8, 2017 · To find the index of a specific integer value (without roundoff error) in an array of integers, use the "find" function and == operator. Using the find () function you can find the indices and the element from the array. A linear index allows use of a single subscript to index into an array, such as A(k). May 23, 2019 · I want to know index of a (4) which is the bold 3. Depending on which release of MATLAB you're using specifying the dimension as 'all' (to find the minimum value in the whole array) and asking for the 'linear' index may be an option. Feb 12, 2024 · The find() function in MATLAB is designed to locate nonzero elements of an array. Every element keeps a unique position, but row and column labels are temporarily hidden. Indexing is a key to the effectiveness of MATLAB at capturing matrix-oriented ideas in understandable computer programs. Jul 23, 2025 · In MATLAB, the arrays are used to represent the information and data. find Find indices and values of nonzero elements Syntax k = find(x) [i, j] = find(X) [i, j, v] = find(X) Description k = find(X) returns the indices of the array X that point to nonzero elements. Apr 10, 2019 · The find function simply finds integer indices into an array that correspond to the logical expression you give it. It returns the indices of the elements that satisfy a given condition. While it’s typically used to find nonzero elements, it can also be employed to find the index of a specific value by comparing array elements with the desired value. When you need to index, combine those individual conditions with and, or, not, etc. Some problems require information about the locations of the array elements that meet a condition rather than their actual values. You can use indexing to access the elements of the array. 5k 28 105 195 MATLAB uses 1-based indexing, so it should read index(1) in your loop solution – Amro Jul 20, 2012 at 13:38 Similar to: Find the location and determine the corresponding value of another array having the same location of one array Feb 18, 2020 · In that case, call min with two outputs. What are indices in MATLAB? Indexing into a matrix is a means of selecting a subset of elements from the matrix. In MATLAB the array indexing starts from 1. I think of linear indexing as flattening a matrix into a single column-major stream. Write each of your conditions as separate logical arrays. Thus, linear indexing numbers the elements in the columns from top to bottom, left to right. It isn't magic. [i,j] = find(X) returns the row and column indices of the nonzero entries in the matrix X. For more information, see Array Indexing. You can reference the A(2,2) element with A(5), and the A(2,3 Jan 3, 2014 · I want to find a specific value's indices in a 2D matrix. To find the index of the element in the array, you can use the find () function. MATLAB® has several indexing styles that are not only powerful and flexible, but also readable and expressive. Jan 23, 2015 · asked Jul 20, 2012 at 2:28 Fantastic Mr Fox 34. It can't find things that don't exist. Hence I used it to find the next value greater than the one you want and did the required maths from there. Mar 10, 2023 · Examples of Matlab find Index Given below are the examples of Matlab find Index: Example #1 Let us see an example related to find function, find function used to find indices and values of nonzero value. If none is found, find returns an empty matrix. I want to learn how to find index of a (n). So in this example, we take a 3-by-3 matrix, and this matrix takes into a variable ‘Y’. Vectorization means using MATLAB matrix and vector operations instead of scalar operations—usually resulting in code that is shorter, more mathematically expressive and readable, and sometimes faster. In this example, you can use the find function to locate all of the elements in A less than 9. This is just an example. This MATLAB function returns a vector containing the linear indices of each nonzero element in array X. MATLAB ® treats the array as a single column vector with each column appended to the bottom of the previous column. . For example, consider a 3-by-3 matrix. For example there is a matrix such as: A = 0 0 8 8 1 0 6 7 1 1 5 1 1 1 1 Here, I want to get the indices of "0". dutqqswgpclcgmyisifhsfmmunnpookpckpowpbokjugeojwfdgewnic