I dont know how to script this operation.

Question

James T 2017-9-4

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/355156-i-dont-know-how-to-script-this-operation

编辑： James T 2017-9-6

function s = sumUp(X)
%Simple function in MATLAB.
%   s=sumUp(x) is a function that returns s given s=Sigma(X(i)).
% Caution! X here is a vector: X=[ x1 x2 ... xn].
s = 0;
% ============= YOUR CODE HERE ==============
% Instructions: Return s given s=Sigma(X(i)), X is a vector.
%               Use built-in function length(X) to obtain the length of X.
%               Use for loop to sum up all elements of X.
% ===========================================
end

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Image Analyst 2017-9-4

在 MATLAB Online 中打开

>> doc for

James T 2017-9-5

Thank you, for that. One of the examples shown solved it, but I need to clean it up a bit.

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Answer 1

Wonsang You 2017-9-4

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/355156-i-dont-know-how-to-script-this-operation#answer_280265

编辑：Wonsang You 2017-9-4

在 MATLAB Online 中打开

Try the following code.

function s = sumUp(X)
   s = 0;
   for s=1:length(X)
      s = s + X(s);
   end
end

3 个评论
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Image Analyst 2017-9-5

在 MATLAB Online 中打开

He should not have had s be both the accumulating variable and the loop index. It should be:

function s = sumUp(X)
   s = 0;
   for k = 1 : length(X)
      s = s + X(k);
   end
end

James T 2017-9-6

编辑：James T 2017-9-6

I discovered it was the right script, but a few letters needed to be changed inside the statement after looking at the documents and noticing one of them used a different identifier. I am new to this style of scripting, but it's been fun so far! Thank you!

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