Matlab Reshape Matrix
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If i have a matrix a that is 10x4 how would i reshape this matrix to be a new 5x8 matrix b so that the first two rows of a are concatenated to be the first row of b the 3rd and 4th row of a were the second row of b etc.
Matlab reshape matrix. For example reshape x 2 3 gives the reshaped array as 2 by 3 matrix. Because a 9 by 2 matrix also has 18 elements m can be reshaped into it. Reshape 3 d array into 2 d matrix. You can specify a single dimension size of to have the dimension size automatically calculated such that the number of elements in b matches the number of elements in a for example if a is a 10 by 10 matrix then reshape a 2 2 reshapes the 100 elements of a into.
Given below are the examples of reshape in matlab. This matlab function returns the n1 by n2 matrix which has the same elements as a. B reshape a sz1 szn reshapes a into a sz1 by by szn array where sz1 szn indicates the size of each dimension. A 1 4 7 10.
For sparse matrices. Reshape x 2 3 3 results in a 2 by 3 by 3 matrix. Returns matrix or array of the requested size containing the elements of a. Examples of reshape in matlab.
Reshape vector into matrix. Reshape matrix or vector. 3 6 9 12. For example if a is a 10 by 10 matrix then reshape a 2 2 reshapes the 100 elements of a into a 2 by 2 by 25 array.
Reshape a 1 by 10 vector into a 5 by 2 matrix. The reshape function changes the size and shape of an array. If there is more dimension then they are represented in the same way. For example reshape a 3 by 4 matrix to a 2 by 6 matrix.
To reshape a 11 20 vector into a 2 by 5 matrix. To create block arrays and perform a binary operation in a single pass use bsxfun in some cases bsxfun provides a simpler and more memory efficient solution. To build block arrays by forming the tensor product of the input with an array of ones use kron for example to stack the row vector a 1 3 four times vertically you can use b kron a ones 4 1. For example reshape a 3 by 4 matrix to a 2 by 6 matrix.
Reshape the 3 by 3 by 2 array m into a 9 by 2 matrix. M has 18 elements.
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