How can I put the values that I made in a for and if loop into a vector?

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Sophie 2018-4-6

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https://ww2.mathworks.cn/matlabcentral/answers/393070-how-can-i-put-the-values-that-i-made-in-a-for-and-if-loop-into-a-vector

关闭： MATLAB Answer Bot 2021-8-20

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This is what I've got so far, there might be other issues too.

for i = 0:L;
if i == 0:L_1    
v_1(i) = P-(P*L_1)/L
    m_1(i) = (P-((P*L_1)/L))*i
    elseif i == L_1:L
    v_1(i) = ((P*L_1)/L)-P
    m_1(i) = (P-((P*L_1)/L))*i - P*(i-L_1)
    end
   v = (i,v_1(i))
   m = (i,m_1(i))
end

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Sergey Kasyanov 2018-4-6

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Sophie, try this:

plot([v1,v2],[m1,m2])

Sophie 2018-4-6

That fixed it, thank you!

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Sergey Kasyanov 2018-4-6

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编辑：Sergey Kasyanov 2018-4-6

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Code improvements:

%Range of i for different calculation formulas
FirstRange=[1:L_1];
SecondRange=[L_1:L];
%Create array with result of calculations
v=[ones(length(FirstRange),1)*(P-(P*L_1)/L)
    ones(length(SecondRange),1)*(((P*L_1)/L)-P)];
m=[FirstRange'*(P-((P*L_1)/L))
    (P-((P*L_1)/L))*SecondRange' - P*(SecondRange'-L_1)];

Notes:

1) FirstRange - row array, FirstRange' - column array with same data.

2) ones(length(FirstRange),1) - column array with ones with the same length as FirstRange.