how to store all the results in a table with index

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bil bbil
bil bbil 2014-3-22
评论： Jan 2014-3-23
hello for exmpl a=length(point);%are already stored in an array for i=1:a-2 for j=i+1:a-1 for k=j+1:a b =point(i,2)+point(j,1)+point(k,1); end end end how to store all the results in a table with 3point ( i(x,y) ,j(x,y),k(x,y))indice??

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回答（1 个）

Image Analyst
Image Analyst 2014-3-23
I don't understand either. I don't think you need a table, though I applaud you for wanting to use this new (as of R2013b) variable type. I think a regular numerical array would be fine.
Are you trying to create a 3D variable called "b" where the x, y, and z indexes are taken from the "point" array and you just want to set it to 1 or something? Like
numberOfPoints = size(points, 1);
for l=1:numberOfPoints
row = points(k,1);
column = points(k, 2);
z = points(k,3);
b(row, column, z) = 1;
end
That's just a SWAG
Also, be aware that a=length(point) takes the longest dimension. Length() takes the longest dimension when you're using it on a multidimensional array. That's why it's safer to use size() so you know for sure what you're getting.
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Image Analyst
Image Analyst 2014-3-23
OK, in that kind of "round robin" type of situation then you would need 3 nested for loops. But we still don't know what your badly-named "b" is. See this:
http://www.mathworks.com/matlabcentral/answers/13205-tutorial-how-to-format-your-question-with-markup
Jan
Jan 2014-3-23
@bil bbil: Please note, that neither "table" nor "points" is well defined here.
Please start with formatting your code in the question. Thanks.

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