Create new field on struct from names on existing field

Question

Mikel Jimenez 2021-7-20

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/882363-create-new-field-on-struct-from-names-on-existing-field

评论： Mikel Jimenez 2021-7-20

采纳的回答： Matt J

Hello,

I have a struct in Matlab as follows:

Now, based on the "name" field, I would like to create a new field called "Color". This new field would have two values, "blue" or "red", depending on the names inside the "name" field. Specifically, if the names have he letters H1, H2 or H3, the color in the new field should be "blue", whether if the name has the letters H4, H5 or H6, it should be "red".

Anyone could help me with this?

Thanks in advance.

-Mikel

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Answer 1

Matt J 2021-7-20

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https://ww2.mathworks.cn/matlabcentral/answers/882363-create-new-field-on-struct-from-names-on-existing-field#answer_750518

编辑：Matt J 2021-7-20

在 MATLAB Online 中打开

names={Stimuli.names};
idxBlue=contains(names,["H1" "H2" "H3"]);
idxRed =contains(names,["H4" "H5" "H6"]);
[Stimuli(idxBlue).Color]=deal("blue");
[Stimuli(idxRed).Color]=deal("red");