Keep underscore symbol using latex as interpreter

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Holden 2024-5-16

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https://ww2.mathworks.cn/matlabcentral/answers/2119656-keep-underscore-symbol-using-latex-as-interpreter

评论： Holden 2024-5-16

Hello All,

I am trying to have one of the entries for my legend (which I like to have latex interpreter for) be the string to the data set I am analyzing (see image). And thus, I want to keep the underscore symbol as is (instead of making what follows a subscript) but still keep the latex as interpreter. I know that making interpeter 'none' it will ignore the subscript, but I want to keep the _ symbol in the legend AND use latex interpreter.

I have not figured out a way to do this (in the attached image, latex doesn't understand the dataName variable so it prints in a different font from the rest of the legend). I want the fonts to match.

Hopefully this makes sense

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Answer 1

Steven Lord 2024-5-16

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https://ww2.mathworks.cn/matlabcentral/answers/2119656-keep-underscore-symbol-using-latex-as-interpreter#answer_1459116

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This text call uses _ to make x a subscript of a.

text(0.25, 0.25, "Text with $a_x$ and LaTeX interpreter", Interpreter = "latex")

This text call uses \_ to include a literal underscore.

text(0.25, 0.75, "Text with $a\_x$ and LaTeX interpreter", Interpreter = "latex")

You can use replace to perform the replacement if you are reading the string you want to use as the legend label from a file.

s = "Text with $a_x$ and LaTeX interpreter"
s = "Text with $a_x$ and LaTeX interpreter"
s2 = replace(s, "_", "\_")
s2 = "Text with $a\_x$ and LaTeX interpreter"