For loop with multiple variables

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

[per isakson]

1. See for, for loop to repeat specified number of times
2. Matlab doesn't honor the syntax you propose

[Greg]

How are j and k not acting as constants here?

for (int i = 0, j = 1, k = 2; i < 5; i++)

[Vaishali Nagpure]

Yes here those are constants what i am trying is for (int i = 1, j = 0; i <= limit; i++, j++)

Answer 1

[Jan]

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

Answer 2

[Rik]

If you mean a nested loop:

for st = 1:numel(pointst)
    for ed = 1:numel(pointed)

    end
end

[Vaishali Nagpure]

I want pointst first field and pointed first field at the same time in one iteration. Then in second iteration i want second field of pointst and pointed and so on ....