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I want to use lookup table(LUT) with two entries i.e. m and error (with respect to m). Later, I want to fetch stored error from LUT by m values. Any one please suggest me ?

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Sanjay Gupta 2023-2-5

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1906735-i-want-to-use-lookup-table-lut-with-two-entries-i-e-m-and-error-with-respect-to-m-later-i-wan

回答： Seth Furman 2023-3-7

采纳的回答： Seth Furman

Two entries for lookup table are:

m = [0.01 0.1 0.2 0.5 1 2 5 10 100];

error = [0.1229 1.2106 2.3099 4.0651 0 -4.0651 -2.3099 -1.2106 -0.1229];

Later, i want to fetch error value with respect to m.

For example: for m=0.1, error(m)=1.2106.

Anyone please suggest me some idea??

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采纳的回答

Seth Furman 2023-3-7

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1906735-i-want-to-use-lookup-table-lut-with-two-entries-i-e-m-and-error-with-respect-to-m-later-i-wan#answer_1186810

在 MATLAB Online 中打开

Consider dictionary.

https://www.mathworks.com/help/matlab/ref/dictionary.html

m = [0.01 0.1 0.2 0.5 1 2 5 10 100];

err = [0.1229 1.2106 2.3099 4.0651 0 -4.0651 -2.3099 -1.2106 -0.1229];

d = dictionary(m,err)

d =

dictionary (double ⟼ double) with 9 entries: 0.0100 ⟼ 0.1229 0.1000 ⟼ 1.2106 0.2000 ⟼ 2.3099 0.5000 ⟼ 4.0651 1 ⟼ 0 2 ⟼ -4.0651 5 ⟼ -2.3099 10 ⟼ -1.2106 100 ⟼ -0.1229

d(.1)

ans = 1.2106

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