How can I convert a 2D matrix into separate 1D vectors in one line

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Amir Patel 2016-12-19

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评论： Amir Patel 2016-12-19

采纳的回答： Star Strider

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hi

I have a 1673 x 34 matrix of data. I would like to put each column into its own 1673 length variable.

I know I can index each of these one at a time, but it will take long with 34 variables. Is there a way to do it in one line?

I can do it with a 1 x 34 using num2cell and then deal. Eg:

    states = num2cell(states);
    [ ddx, ddy, ddz, ddphi1, ddth1, ddpsi1, ddth3, ddpsi3, ddth4, ddpsi4, dx, dy, dz, dphi1, dth1, dpsi1, dth2, dth3, dpsi3, dth4, dpsi4, x, y, z, phi1, th1, psi1, th2, th3, psi3, th4, psi4, k, b]=deal(states{:});

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Answer 1

Star Strider 2016-12-19

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Please don’t!

I would use the mat2cell function to create them as a cell array. It is easier to address them as individual cell elements than as columns of your matrix.

Example:

M = randi(9, 1673, 34);                                 % Create Data
C = mat2cell(M, size(M,1), ones(1,size(M,2)));          % Create Column-Vector Cells