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What should be modified inside the for loop?

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Priya
Priya 2014-7-2
编辑： Priya 2014-8-6
For each value of f_x_loop, I need x_a to take one of the five values from s_x_index for each iteration instead of one value for all the iteration.
s_x_index=[0.01 0.02 0.03 0.04 0.05]
for i = 1:length(s_x_index)
x_a = s_x_index(i);
f_x_loop = (F*x_a)/(s*Q)
f_x_loop_save(i) = f_x_loop(i)
end
Please let me know if the given information is not sufficient.
Thanks

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Sara
Sara 2014-7-2
Change these lines:
f_x_loop = (F*x_a)/(s*Q)
f_x_loop_save(i) = f_x_loop(i)
into:
f_x_loop_save(i) = (F*x_a)/(s*Q)
in addition, put:
f_x_loop_save = zeros(numel(s_x_index),1);
before the for loop
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Joseph Cheng
Joseph Cheng 2014-7-2
编辑：Joseph Cheng 2014-7-2
At the start before you do their suggestion just do mine. what i suggest will get it so that all your values are not for one value on the X axis.
what was originally suggested is good practice as you're doing an un-necessary temporary calculation (b=a then c=b, why not just c=a since you aren't using b anywhere) and initialization of the array for memory optimization (faster to fill in matrix than keep adding to the end of an array).
Sara
Sara 2014-7-3
Try this:
f_x = (F.*s_x_index)/(s*Q);
figure(5);
plot(s_x_index, f_x, 'o')
xlabel('Longitudinal creepage');ylabel('coefficient of adhesion')
hold on;

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