PROBLEM WITH FUNCTION IF

Question

Karim Hasouna 2019-10-6

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/483873-problem-with-function-if

关闭： MATLAB Answer Bot 2021-8-20

 for n=0.00:0.01:0.20; 
     factor= exp(-(n).*((1:NTcoupon)/Ncoupon));
     Price = C*factor' +FV*exp(-(n)*t);
     disp("the price of the coupon bond is:" +Price )
     plot(Price)
 end 

I don't understand why the output is not a matrix with t components right priced.

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Answer 1

Walter Roberson 2019-10-6

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https://ww2.mathworks.cn/matlabcentral/answers/483873-problem-with-function-if#answer_395040

You do not ask to output a matrix. You output a string to the display, and you ask to plot() something. You do not appear to have hold on in effect, so each plot() will overwrite the previous plot.

Also, your loop does not use n . It does, however, use i . It is not obvious from your code whether you assigned something to i. If you did not, then i will have its default value of sqrt(-1) . If you intend it to be sqrt(-1) then it would be clearer if you code 1i instead of i .

I recommend that you read

https://www.mathworks.com/matlabcentral/answers/480004-need-help-with-taking-an-array-inside-a-for-loop-and-plotting-it#answer_391484