The array logInd is not an array of double numbers, but have the class logical . Learn more about matlab, for loop, matrix array, iteration, matrix manipulation MATLAB These indexing tricks come in handy to avoid "for" loops and in vectorizing code. MATLAB linear indexing also extends to multidimensional arrays. While MATLAB displays arrays according to their defined sizes and shapes, they are actually stored in memory as a single column of elements. That means, you specify each position in the matrix with a single number. MATLAB returns an array that matches the elements of the array X, element-by-element holding 1s where the matching values in X are the desired values, and 0s otherwise. Indexing is the way to select a particular element in an array. Another method for accessing elements of an array is to use only a single index, regardless of the size or dimensions of the array. Linear Indexing with Multidimensional Arrays. For example, consider the 4-by-4 magic square A: Indexing with a Single Index. MATLAB allows for several methods to index (access) elements of matrices and arrays: Subscript indexing - where you specify the position of the elements you want in each dimension of the matrix separately. Indexing with a Single Index. There are a surprising number of things that can be done by just indexing into a Matlab array. This method is known as linear indexing. When you want to access selected elements of an array, use indexing. While MATLAB displays arrays according to their defined sizes and shapes, they are actually stored in memory as a single column of elements. Indexing with a Single Index. Array Indexing in MATLAB. This method is known as linear indexing. Storing a loop index value in a dynamic array?. Example. See Linear Indexing for for an introduction to this topic. In this case, MATLAB operates on a page-by-page basis to create the storage column, again appending elements columnwise. Every variable in MATLAB® is an array that can hold many numbers. The indexing in arrays in MATLAB is the same as mathematics. While MATLAB displays arrays according to their defined sizes and shapes, they are actually stored in memory as a single column of elements. This method is known as linear indexing. Learn more about convolution, indexing MATLAB provides us with plenty of functionalities, useful in various computational problems. Indexing into Matlab arrays is very often glossed over, but it is actually quite a powerful (and fast) technique. It has a different syntax of accessing the elements. And all the elements in the array are indexed as per row and column. ; Linear indexing - where the matrix is treated as a vector, no matter its dimensions. Any particular element can be accessed using indexing in MATLAB. Index exceeds the number of array elements (4). Another method for accessing elements of an array is to use only a single index, regardless of the size or dimensions of the array. For example, consider a 5-by-4-by-3-by-2 array C. Indexing Arrays. In this article, we will study a powerful MATLAB functionality called ‘MATLAB Indexing’. Another method for accessing elements of an array is to use only a single index, regardless of the size or dimensions of the array. MATLAB uses 1-based indexing, so it should read index(1) in your loop solution – Amro Jul 20 '12 at 13:38 Similar to: Find the location and determine the corresponding value of another array having the same location of one array – Amro Jul 20 '12 at 13:41 Introduction to MATLAB Indexing. Every variable is an array in MATLAB. Tricks come in handy to avoid `` for '' loops and in vectorizing code are! You want to access selected elements of an array, use indexing the magic. The 4-by-4 magic square a: indexing with a single index use indexing functionality called ‘ indexing. 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