Plots.jl: How can I add the string like PM2.5 in gr() with 2.5 is the subscript ，ug m-3. -3 is Superscript

[nizhizhen]

[mkborregaard]

You use LaTeXStrings to define the latex-string, then pass that to the plot command where you need the text.

[nizhizhen]

[nizhizhen]

sir, thanks for your reply! But things still go wrong, you see why?

[mkborregaard]

Hard to say – it doesn't look Plots-related.

Also, should the y-argument be a 1-row matrix rather than a vector?

[nizhizhen]

When I input g=L"sdfsa" then ,ouput :+1:
Error displaying LaTeXStrings.LaTeXString: you must implement endof(LaTeXStrings.LaTeXString)

this may something wrong with LaTeXStrings ? what should I do .

[mkborregaard]

Well, your string to yaxis does not have an L in front.

[nizhizhen]

still error, I want the PM2.5 ,2.5 is the subscript . I give up . another help? the legend looks been masked , can I move it upper to close the top. or move out of the frames to the right.

[mkborregaard]

Check this page https://juliaplots.github.io/attributes/ for all the keywords you can use to modify plots. The attribute for legend placement is called "legend". Also, you can use a Vector of Base.Dates for the x axis rather than passing a string, that will allow Plots to handle the ticks.

[nizhizhen]

^_^，thanks a lot. I am a fish man , would you show me the detail codes about Base.Dates. e.g. legend=Dates(...) ?

[mkborregaard]

About Dates, read this: https://docs.julialang.org/en/stable/manual/dates
You can simply pass a vector of Dates as x to Plots.

[nizhizhen]

sir. I really can not understand the lower legend, how to move it more close to the top like 100 value. y axis enough . can you give me the detail . code ? e.g. legend=(.....)

[mkborregaard]

I'm sorry but we don't offer very accurate legend placement - just e.g. :topright and so on.Your best bet is to make the plot higher. Agreed, we should offer this. You're welcome to open a new separate feature request issue on that.

[nizhizhen]

thank you sir