For loop with multiple variables
显示 更早的评论
As in java we have "for (int i = 0, j = 1, k = 2; i < 5; i++)"
I would like to do as
for st = 1:numel(pointst) , ed = 1:numel(pointed)
What is the way i can do this kind of operation
3 个评论
per isakson
2018-1-13
- See for, for loop to repeat specified number of times
- Matlab doesn't honor the syntax you propose
Greg
2018-1-13
How are j and k not acting as constants here?
for (int i = 0, j = 1, k = 2; i < 5; i++)
Vaishali Nagpure
2018-1-13
采纳的回答
If you want this:
Java: for (int i = 1, j = 0; i <= limit; i++, j++)
in Matlab:
j = 0;
for i = 1:limit
j = j + 1;
...
end
Less nice alternatives:
index = [1:limit; ...
1:limit];
for k = 1:size(index, 2)
i = index(1, k);
j = index(2, k);
...
end
or
index = [1:limit; ...
1:limit];
for k = index
i = k(1);
j = k(2);
...
end
The last one might look strange. The FOR loop evaluates the given index vector along the 2nd dimension, such that the column vectors are assigned to k.
Maybe this is useful for you:
indexI = 1:limit;
indexJ = 1:limit; % Of course this is a test data only
for k = 1:numel(index1)
i = indexI(k);
j = indexJ(k);
...
end
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