Won't show me my variable?

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Frane on 24 Aug 2021

Edited: Franeon 24 Aug 2021

Accepted Answer: Stephen23

Hello,

So when I run the code I don't get my variable "I" on the right side. The variable is in the following part od the code:

ifMs >=3.5

I = 21.29 * Ms - 69.4;

elseifMs >= 2

I = 2.73 * Ms - 4.47;

elseifMs >= 0

I = 0.5 * Ms;

elseifMs >= (-2)

I = 0.5 * Ms;

elseifMs >= (-3.5)

I = 2.73 * Ms + 4.47;

elseifMs < (-3.5)

I = 21.29 * Ms + 69.4;

end

What could be the problem?

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Frane on 24 Aug 2021

What can I change to fix it?

Accepted Answer

Stephen23 on 24 Aug 2021

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//www.tianjin-qmedu.com/matlabcentral/answers/1439574-won-t-show-me-my-variable#answer_773424

"What can I change to fix it?"

Use logical indexing, e.g.:

                              I = 0.5 * Ms;
                             
                              X = Ms>=3.5;
                             
                              I(X) = 21.29 * Ms(X) - 69.4;
                             
                              X = Ms>=2 & Ms<3.5;
                             
                              I(X) = 2.73 * Ms(X) - 4.47;
                             
                              X = Ms<(-2) & Ms>=(-3.5)
                             
                              I(X) = 2.73 * Ms(X) + 4.47;
                             
                              X = Ms<(-3.5);
                             
                              I(X) = 21.29 * Ms(X) + 69.4;

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Frane on 24 Aug 2021

It worked.

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