How to create an underline in text

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Mepe 2020-6-28

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/556162-how-to-create-an-underline-in-text

评论： madhan ravi 2020-7-4

采纳的回答： madhan ravi

在 MATLAB Online 中打开

Given ist following legend:

legend('Group 6 MHz \newline{\bff_1} \newline2f_2-f_3 \newlinef_2+f_3-f_4 ', ...
    '\newlineGroup7.3 MHz \newline{\bff_2} \newline2f_3-f_4 \newlinef_1+f_3-f_2 \newlinef_1+f_4-f_3 ', ...
    '\newlineGroup8.7 MHz \newline{\bff_3} \newline2f_2-f_1 \newlinef_2+f_4-f_3 \newlinef_1+f_4-f_2  ', ...
    '\newlineGroup10 MHz \newline{\bff_4} \newline2f_3-f_2 \newlinef_2+f_3-f_1 ','location','northeastoutside')

A total of four graphs with corresponding sub-labels are to be shown here. I want the first line (Group 6 MHz, Group7.3 MHz ...) to be underlined. Does somebody has any idea?

Many thanks!

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madhan ravi 2020-6-28

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/556162-how-to-create-an-underline-in-text#answer_458329

在 MATLAB Online 中打开

legend(' $\underline{Mepe}$ ','interpreter','latex')

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Walter Roberson 2020-6-29

I do not understand why Mathworks does not enable \usepackage .

The only thing I have been able to come up with is that perhaps adding packages would make it more difficult to figure out the rendered size of items in order to know how to space text and ticks and legend entries.

madhan ravi 2020-6-29

Very true perspective.

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Walter Roberson 2020-7-4

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/556162-how-to-create-an-underline-in-text#answer_460787

在 MATLAB Online 中打开

https://www.mathworks.com/matlabcentral/answers/95028-how-can-i-create-a-latex-table-from-a-matlab-array

shows the latex code example

 \left [\begin {array}{ccc} 1&2&3\\\noalign{\medskip}4&5&6\\\noalign{\medskip}7&8&9\end {array}\right ]
 

and that works in MATLAB:

 plot(rand(1,5));
h = legend('$\left [\begin {array}{ccc} 1&2&3\\\noalign{\medskip}4&5&6\\\noalign{\medskip}7&8&9\end {array}\right ]$', 'interpreter','latex')

So...

S = { '$\begin{array}{l}\underline{Group 6 MHz}\\{\medskip}\bf{f_1}\\{\medskip}2f_2-f_3\\{\medskip}f_2+f_3-f_4\end {array}$', ...
      '$\begin{array}{l}\underline{Group7.3 MHz}\\{\medskip}\bf{f_2}{\medskip}2f_3-f_4\\{\medskip}f_1+f_3-f_2\\{\medskip}f_1+f_4-f_3\end {array}$', ...
      '$\begin{array}{l}\underline{Group8.7 MHz}\\{\medskip}\bf{f_3}\\{\medskip}2f_2-f_1\\{\medskip}f_2+f_4-f_3\\{\medskip}f_1+f_4-f_2\end {array}$', ...
      '$\begin{array}{l}\underline{Group10 MHz}\\{\medskip}\bf{f_4}\\{\medskip}2f_3-f_2\\{\medskip}f_2+f_3-f_1\end {array}$' };
legend(S, 'location', 'northeastoutside', 'interpreter', 'latex')

You will want to work on the vertical spacing a bit.

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Walter Roberson 2020-7-4

I tried with array myself, but I could not get it to work before. I think the major part I was missing was the column alignment information immediately after the \begin{array}