How can I have the cumulative sum of the returned values of a function as a vector?

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Sherwin
Sherwin 2016-10-8
编辑： Blackadder 2016-10-9
I want to have the cumulative sum of the returned values of AB function in a loop...I want the cumulative sum of the returned values of AB function to form a vector every time it is used. Would you please help me?
for i = 1:P
for j = 1:L
for k = 1:(D / 6)
H = AB (Min{j}(k), Max{j}(k));
end
end
end
  2 个评论
Marc Jakobi
Marc Jakobi 2016-10-8
You should provide more information. What is P? What is L? what is D? You said AB is a function? What is it supposed to return?
Sherwin
Sherwin 2016-10-8
编辑：Sherwin 2016-10-8
oh, right. P, L and D are just the number of times the loops should be iterated. They are just the dimensions of the answer matrix and can be replaced by numbers like P=50, L=4 and D=48. AB function returns a random number between Min and Max according to the j and k and Min and Max are provided as inputs of the problem.

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回答（1 个）

Blackadder
Blackadder 2016-10-9
You say you expect a "vector" as a return value. Am I to assume that this vector should have 1 column and P*L*(D/6) rows, or vice versa, respectively?
  2 个评论
Sherwin
Sherwin 2016-10-9
The problem is that I'm not sure about the dimension of the vector, because I don't know for l=1:4 how many times H should be calculated and then I can have H cumulative values of it. The random returned value if AB function specifies that so it can vary for every iteration.
Blackadder
Blackadder 2016-10-9
编辑：Blackadder 2016-10-9
So AB can return a vector? Only then would a vector that contains all the H not have the length P*L*(D/6).
And if so, one further question: is there a maximum length to the vector returned by AB?

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