Webdiag has four distinct usages: x is a matrix, when it extracts the diagonal. x is missing and nrow is specified, it returns an identity matrix. x is a scalar (length-one vector) and the … WebIf matrix is a vector, the DIAG function creates a matrix with diagonal elements that are the values in the vector. All off-diagonal elements are zeros. For example, the following statements produce a diagonal matrix by extracting the diagonal elements of a square matrix: a = {4 3, 2 1}; c = diag(a); print c;
modify only the diagonal entries in a matrix? - MathWorks
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Understanding the Covariance Matrix DataScience+
WebThe decomposition of the Mueller matrix of blood films has been carried out using differential matrices with polarized and depolarized parts. The use of a coherent … WebApr 19, 2024 · If your matrix M is not square and if you only want those diagonal elements changed to zero “if it is 1”, then you can do the following. Other diagonal elements not equal to one will remain unchanged. (Your description was perhaps a … WebJul 9, 2024 · another to change the input matrix in place. % Create a logical mask for the diagonal elements. % First way: Create an output matrix m2, retaining the original m. % Multiply diagonal elements of m2 (in place) by 2. m2 (d) = m (d) * 2 % Input values are replaced. % Second way: Change/replace the values in original matrix. cannot import name filewrapper from werkzeug