compare between two results with percentage Error

Question

mohammed hussein 2017-12-6

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/371481-compare-between-two-results-with-percentage-error

评论： mohammed hussein 2017-12-6

Hi

can you help me with this problem , i have two results (original and calculation) , i would like to compare the original with calculation results and have the percentage error in calculation part when compare with original . for example if i have

Original =[1;2;3;1;2;3]; calculation=[1;2;3;1;2;3];

the calculation is exact the original so the percentage Error in calculation is 0% if i have

Original =[1;2;3;1;2;3]; calculation=[1;1;3;2;2;1];

the calculation is not exact the original so the percentage Error in calculation has to be 50%

thank you

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Answer 1

Alizée Perrin 2017-12-6

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https://ww2.mathworks.cn/matlabcentral/answers/371481-compare-between-two-results-with-percentage-error#answer_295030

在 MATLAB Online 中打开

Your question is similar to this one.

Try this code :

PDif = 100*(calculation-original)./original;

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mohammed hussein 2017-12-6

thank you for your answer . i want to compare not by number but by similarity in numbers . if it is similar OK if it is not so it is wrong . the percentage is based on similarity in number .

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