Making a function to restructure matrix of coordinates
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I have a 36x3 matrix of data in a double, where the three columns represent x, y, and z coordinates. I'm trying to make two functions. The first will restructure the matrix so that it becomes a 6x6 data set, where the column and row numbers represent the x and y values and the cells represent the z values. The second reverses this, and converts the 6x6 back into the original 36x3. I've looked a bit into using the reshape function, but I dont know how to incorporate the values of the rows and columns. Any help is appreciated. Thanks.
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James Tursa
2020-4-13
Your 6x6 scheme can only work if the x and y values form a regular grid and the formula for the grid coordinates is known. Is that the case? If so, how is the data in the 36x3 matrix organized? Can you give a numeric example?
Patrick O'Mahony
2020-4-14
采纳的回答
Z=reshape(xyz(:,3),6,6); %6x6 format
and then to revert back,
[X,Y]=ndgrid(1:6);
xyz=[X(:),Y(:),Z(:)]; %36x3 format
3 个评论
Patrick O'Mahony
2020-4-14
Matt J
2020-4-14
You're welcome. Please Accept-click th answer, though, to indicate that a solution was reached for you.
Patrick O'Mahony
2020-4-14
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