Vectorization Using Vectorization. MATLAB ® is optimized for operations involving matrices and vectors. The process of revising loop-based, scalar-oriented code to use MATLAB matrix and vector operations is called vectorization. 12/01/2018 · Learn how to transform a matrix into a vector in MATLAB. vec2mat is similar to the MATLAB ® function reshape. However, given a vector input, reshape creates its corresponding matrix one column at a time instead of one row at a time. Also, reshape requires its input and output arrays to have the same number of elements, whereas vec2mat pads its output matrix. MATLAB Matrix Function. Sometimes, you will also need to pass a matrix as an input or as an output of your function. In that case, you’ll have to use them as arguments as if it was a single input/output function. For example, here’s a function that has a single input matrix and a single output matrix. Let’s say you have the following matrix.

Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Provide details and share your research! But avoidAsking for help, clarification, or. Hi I have a 3 dimensional matrix that I am trying to convert the rows to columns and then stack all the columns to generate a vector that will have the three dimensions.

Possible Duplicate: How do you concatenate the rows of a matrix into a vector in MATLAB? Hi, Does anyone know what is the best way to create one row matrix vector from M x N matrix by putting all rows, from 1 to M, of the original matrix into first row of new matrix the following way. reshape transforms a vector into a matrix of a desired size. The matrix is created in column-major order. Therefore, just using reshape by itself will place the elements in the columns. Since you desire the elements to be populated by rows, a trick is to simply transpose the result.

Expanding a Matrix. You can add one or more elements to a matrix by placing them outside of the existing row and column index boundaries. MATLAB automatically pads the matrix with zeros to keep it rectangular. For example, create a 2-by-3 matrix and add an additional row and column to it by inserting an element in the 3,4 position. @paddy what I meant to say is that my matrices' dimensions are in the type of the matrix, so they cannot be changed. Since I treat matrices as mathematical objects rather than storage space, it makes sense to me to use the compiler to enforce certain constraints, for example, you cannot assign a 2x4 matrix to a 5x1, or you cannot multiply to. How about this to convert the matrix into a column vector param2 = data2d:,1; % Convert column 1 of 2-d data matrix into a column vector. If not, then state your rules for getting each row of your desired output vector.

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