Find in matlab

Help Center Help Center. This example shows how to filter the elements of an array by applying conditions to the array. For instance, you can examine the even elements in a matrix, find the location find in matlab all 0s in a multidimensional array, find in matlab, or replace NaN values in data. You can perform these tasks using a combination of the relational and logical operators.

Help Center Help Center. If X is a vector, then find returns a vector with the same orientation as X. If X is a multidimensional array, then find returns a column vector of the linear indices of the result. The default for direction is 'first' , which finds the first n indices corresponding to nonzero elements. Use the logical not operator on X to locate the zeros. Find the first five elements that are less than 10 in a 4-by-4 magic square matrix. For instance, find the element equal to 13 in a 1-by vector of odd integers.

Find in matlab

The find function in MATLAB is used to find the indices and values of non-zero elements or the elements which satisfy a given condition. The relational expression can be used in conjunction with find to find the indices of elements that meet the given condition. It returns a vector that contains the linear indices. Using liner index a multidimensional array can be accessed using a single subscript. MATLAB treats the array as a single column vector with each column appended to the bottom of the previous column. Note: k will be of same orientation as X if X is a vector and if X is a multidimensional array then k will be a column vector which will hold linear indices. Example 1: Below code will return the indices of non-zero elements in a 1-D array. Example 2: Below code will return the first 2 indices of elements where the element will be greater than 3. Example 3: Below code will return the last 2 row and column indices of elements that are greater than 3. So, A 2, 3 and A 3, 3 are the last elements that are greater than 3.

The result is a list of all even elements in A that are less than 9. You have a modified version of this example.

You can use indexing to access the elements of the array. To find the index of the element in the array, you can use the find function. Using the find function you can find the indices and the element from the array. The find function returns a vector containing the data. Note: If the array contains duplicates then find X function will return all the indices of that integer.

MATLAB, a powerful numerical computing environment, offers a plethora of functions to manipulate, analyze, and visualize data. Among these functions, the find function stands out as a versatile tool for locating the indices of non-zero elements within arrays and matrices. It is a versatile function that can be applied to vectors, matrices, and multidimensional arrays. For vectors, a column vector indices is returned, containing the indices of non-zero elements. For matrices, two vectors, i and j , can be returned, representing row and column indices, respectively.

Find in matlab

Help Center Help Center. This example shows how to filter the elements of an array by applying conditions to the array. For instance, you can examine the even elements in a matrix, find the location of all 0s in a multidimensional array, or replace NaN values in data. You can perform these tasks using a combination of the relational and logical operators. To apply a single condition, start by creating a 5-by-5 matrix that contains random integers between 1 and Reset the random number generator to the default state for reproducibility. Store the result in B. The result is a logical matrix. For example, A 1,1 is 13 , so B 1,1 is logical 0 false. However, A 1,2 is 2 , so B 1,2 is logical 1 true.

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Like Article. Usage notes and limitations: If a variable-size input becomes a row vector at run time, then code generation ends with an error. To find the index of the element in the array, you can use the find function. We use cookies to ensure you have the best browsing experience on our website. Similar Reads. For more information, see Array Indexing. This example shows how to filter the elements of an array by applying conditions to the array. Extended Capabilities Tall Arrays Calculate with arrays that have more rows than fit in memory. Additional Information. Next, replace all values in A that are not equal to 10 with a NaN value. Share your suggestions to enhance the article.

The find function in MATLAB is used to find the indices and values of non-zero elements or the elements which satisfy a given condition.

For instance, find the element equal to 13 in a 1-by vector of odd integers. You can also find the index of the elements from both directions in the array. The sub2ind and ind2sub functions are useful in converting between subscripts and linear indices. Help Center Help Center. You have a modified version of this example. Add Other Experiences. Extended Capabilities Tall Arrays Calculate with arrays that have more rows than fit in memory. Engineering Exam Experiences. Engineering Exam Experiences. Specify the conditions as a logical index to view the elements that satisfy both conditions. For example, consider a 3-by-3 matrix. Add Other Experiences. You can return the nonzero values in X using X k. Select the China site in Chinese or English for best site performance. The resulting matrix has values of logical 1 true in place of the NaN values, and logical 0 false in place of the 10s.