Ind2sub

JavaScript library to unravel a linear index into subscripts that index into a multi-dimensional array of a given size Julia and Matlab people know what's what. Convert a linear indexand an array of ind2subto an array of subscripts that index into a multi-dimensional array of ind2sub sizes in the Fortran column-major convention first index varies fastest, ind2sub. Then in Node, you can use it:. Browser If you want to load this as a global variable in the browser, download ind2sub-browser, ind2sub.

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Ind2sub

Help Center Help Center. Here sz is a vector with two elements, where sz 1 specifies the number of rows and sz 2 specifies the number of columns. Here sz is a vector with n elements that specifies the size of each array dimension. Convert the linear indices [3 4 5 6] to row and column subscripts in a 3-by-3 matrix. The mapping from linear indices to subscripts indexing by position is illustrated in the following. Convert the linear indices [3 4 5 6] to subscripts in a 2-byby-2 array. The mapping from linear indices to subscripts indexing by position for a 2-byby-2 array can be illustrated as in the following. When using ind2sub for an N-dimensional array, you would typically supply N output arguments for each dimension of the matrix. This example shows the different results when you return fewer output arguments for a 3-dimensional array. Create the input arguments needed to convert the linear indices 1 through 8 for a 3-dimensional array with size 2-byby

Vote 1. No, overwrite the modified version Yes. Latest commit.

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Matlab supports 3 forms of indexing matrices. There is the familiar range indexing that selects a submatrix within a larger matrix:. These two methods are fairly expressive, yet there are a certain number of operations which are awkward or impossible to perform with these. You might think this requires the use of a loop or some special function within Matlab. Yet this operation is easily done in a single step with linear indexing. Background: a Matlab matrix is internally stored as a flag defining its shape, followed by sequential numeric data organized such that the first index of the matrix grows fastest and the last grows slowest. If a matrix has size 10,20 , the element 1,1 has linear index 1, the element 10,1 has index 10, 1,2 has index 11, and so forth. And translate them into linear indices. So you could select the off diagonal using:. This is not very readable, however.

Ind2sub

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You signed out in another tab or window. Here sz is a vector with n elements that specifies the size of each array dimension. Go to file. For example, [2 3 4] defines a 2-byby-4 array. Latest commit. Last commit date. See Also. Multidimensional subscripts, returned as a scalar, vector, matrix, or multidimensional array. Size of array, specified as a vector of positive integers. Each element of this vector indicates the size of the corresponding dimension. Skip to content. A row,col,page. Help Center Help Center.

Help Center Help Center. Here sz is a vector with two elements, where sz 1 specifies the number of rows and sz 2 specifies the number of columns.

Trial software. More Answers 0. Star Strider on 20 Jul No, overwrite the modified version Yes. MathWorks Answers Support. Run clang-format to prettify the TypeScript:. This function fully supports thread-based environments. Folders and files Name Name Last commit message. Search Support Clear Filters. This example shows the different results when you return fewer output arguments for a 3-dimensional array. MATLAB uses linear indexing for arrays, however many arrays are also referred to by subscripts into the rows, columns, and additional dimensions. Browser If you want to load this as a global variable in the browser, download ind2sub-browser. Column subscripts, returned as a scalar, vector, matrix, or multidimensional array. It appears to be completely appropriate here.