Plotting (Greek letter label, high resolution...)

[digxx]

I have a few questions regarding plotting:

1. How do I plot Greek letters? In particular I want to use them as strings in a labeling of axes or curves.

2. When using Plot with backend Gadfly how do I savefig with higher resolution? So far it produces 600x400

3. How do I print x^* ?? (like it would look in latex)

[digxx]

Sorry just found out about the second...

So still need 1 and 3 :-(

[Tom Breloff]

I think this example will help:

​

The greek letters are created with tab completion: "\gamma<tab>"

For a little more info on latex in Gadfly, see this issue: https://github.com/dcjones/Gadfly.jl/issues/356

[digxx]

Sorry to bother you again, but I still do have 2 issues:

using label="x<sup>x" for example works fine as long as I just plot in the browser, but when trying to use savefig it's telling me

(julia.exe:5956): Pango-WARNING **: pango_layout_set_markup_with_accel: Error on line 1 char 31: Element 'markup' was closed, but the currently open element is 'sup'

The second issue is that using label="x<sup>{\gamma<tab>}" is just printing x^{gamma} where gamma is actually written and not the sign!?

[Tom Breloff]

Yes sorry you need the closing "</sup>" at the end.

<tab> means actually pressing the TAB key on your keyboard.

[digxx]

Yes I tried for example

"\gamma            "

or

"{\gamma         }"

"{\gamma         }             "

and so on but i still get only the written gamma :-/

Maybe I'm missing some package?

Or some <> u need like with <sup>?

[Stefan Karpinski]

You need to press the tab key after typing \gamma.

[digxx]

That it what I try to emphasize with the 3 examples (with blanks) above...
I did write \gamma and then this http://www.informationq.com/wp-content/uploads/2013/10/Tab-Key.jpg both in " ... " but it still doesnt work :-(
Working with cygwin on windows shouldnt be an issue or?

[Tom Breloff]

You are doing this from the Julia REPL, or something else?  It should work inside the Julia REPL, if not maybe you should file an issue?  https://github.com/JuliaLang/julia/issues

[digxx]

not quite sure what I belong to: I am using the REPL Julia interface only for include("....") to read/run my files i wrote in notepad. Does this still belong to REPL or what does it differ to IJulia for example (which I have never used yet)

[digxx]

Ok now im home and see the problem. I never use repl for plotting. I just use notepad++ and run it.

\gamma turns into the actual letter when pressing tab, but not in the notepad obviously ;)

So is there a way to still do it?

[digxx]

apart from using repl...

[Stefan Karpinski]

You can enter Unicode characters using Unicode escapes, e.g.

julia> "\u03b3"

"γ"

Windows has various ways of inputting Unicode characters like γ:

http://www.johndcook.com/blog/2008/08/17/three-ways-to-enter-unicode-characters-in-windows/

You may also want to try an editor that has support for this, e.g. Sublime Text.

On Wed, Feb 3, 2016 at 2:02 PM, digxx <diger...@hotmail.com> wrote:

apart from using repl...