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matlabmatrixconcatenation
Vivek Nangia
Vivek Nangia

Reputation: 1

Matlab - Two Column Matrices into One Column Matrix with rows elements

I have two column matrices:

size(X) = 50 x 1 size(Y) = 50 x 1 which I got from ind2sub

I want to create a structure str such that 

str(i).XYZ returns [X(i), Y(i)] for i in [1,50]

I am trying to use 

str = struct('XYZ', num2cell([X,Y]));

However, I believe for this to work properly, I need to modify [X,Y] to a matrix of row vectors, each row vector being [X(i), Y(i)]. Not sure if there is a better approach

Upvotes: 0

Views: 173

Answers (2)

Daniel
Daniel

Reputation: 36710

You are basically on the right way, but num2cell([X,Y]) creates a 2x50 cell, which results in a 2x50 struct. You want to split your input matrix [X,Y] only among the second dimensions so each cell is a 2x1, use num2cell([X,Y],2)

str = struct('XYZ', num2cell([X,Y],2));

Upvotes: 1

Luis Mendo
Luis Mendo

Reputation: 112659

Concatenate the two vectors, convert from matrix to cell, and then from cell to struct array:

str = cell2struct(mat2cell([X Y], ones(1,size(X,1)), size(X,2)+size(Y,2) ).', 'XYZ');

Upvotes: 0

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