Subscript in figure WHAT AM I DOING WRONG?

Hi, for some reason I can't get subscript on my axes titles to work properly, below I've tried two different ways to produce suscript that work on my scatter plots, but are not functioning here. When run, the axes titles are exactly as written with all the symbols. Can someone please tell me what I've done wrong? Running version version R0219b. Thank you for your time.

mdl = fitlm(x,y)

coefCI(mdl)

plot(mdl,'Marker','.','Color','b')

ylabel('Comparison 1 NO_2 ppb_v')

xlabel('Comparison 2 [NO_{2}] ppb_{v}')

Answer 1

[Stephan]

https://de.mathworks.com/matlabcentral/answers/157122-latex-interpreter-mean-bar-with-subscripts

[Danielle Blum]

Thank you for the reply, I just tried this and it didn't work.

I tried with the Latex code, without the latex code, moving the underscores, and the dollar signs. It continues to plot as written.

[Stephan]

https://de.mathworks.com/matlabcentral/answers/515107-plot-label-with-latex-symbol

Documentation site: https://de.mathworks.com/help/matlab/creating_plots/greek-letters-and-special-characters-in-graph-text.html

[Danielle Blum]

Thank you, I managed to figure it out with the final two links and this additional link others might find helpful.

https://tex.stackexchange.com/questions/277705/some-text-lines-are-italicized-with-no-spaces-between-words

Here is what the labels look like now:

ylabel('Comparison 1 $NO_{2}$ $ppb_{v}$','interpreter','latex')

xlabel('Comparison 2 $NO_{2}$ $ppb_{v}$','interpreter','latex')

For those who are new to this notation, like me, placing the $ around the entire label results in no spaces between words or units.