problem to implement an algorithm
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I want to implement the algorithm in matlab but what I underlined with red is confusing me a little bit.
Is there a function in matlab that does this action, or do I just type path(i,j) and it will add on its own?
4 个评论
John D'Errico
2020-12-24
Um, be careful? path is itself a function in MATLAB, that you do need. so naming a variable path can have consequences. Nor can you just assume that path(i,j) will do anything that you would expect it to do.
Khalid Sherif
2020-12-24
编辑：Khalid Sherif
2020-12-24
William
2020-12-24
Given what John said, you should rename 'path' to something else, like 'pathij'. Then at the beginning of the code set
pathij = [];
and at the location of your red line you can use:
pathij = [pathij; i j];
If you can anticipate how many values of i,j there will be (let's say N), then it is more efficient to give the array pathij an explicit size, with:
pathij = zeros(N,2);
n = 1;
Then, at the red line you would use:
pathij(n,:) = [i j];
n = n+1;
Khalid Sherif
2020-12-25
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2020-12-24
2020-12-25
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