[Matplotlib-users] changing labeling of axes

Benjamin Root ben.v.root at gmail.com
Wed Nov 8 11:21:34 EST 2017


Ah, then you need to simply change the tick formatter. Here are some
examples:

https://matplotlib.org/devdocs/gallery/ticks_and_spines/tick-formatters.html

Cheers!
Ben Root


On Wed, Nov 8, 2017 at 11:09 AM, Slavin, Jonathan <jslavin at cfa.harvard.edu>
wrote:

> Hi Ben,
>
> The issue with that is that I want to retain the logarithmic binning. If I
> change the xscale/yscale to log with the binning as set up now, then it
> will try to scale the log values logarithmically.  So I still want the axes
> to be scaled in the same way, I just want the labeling of the axes to be
> different.  Is that clear?
>
> Jon
>
> On Wed, Nov 8, 2017 at 10:25 AM, Benjamin Root <ben.v.root at gmail.com>
> wrote:
>
>> You can do `ax.set_xscale('log')` to set the x-axis to log scale and
>> similarly for the y-axis. It'll automatically make the tick labels make
>> sense. Also, you won't need to pass in the log10 of n or P, matplotlib will
>> handle all of that for you.
>>
>> Cheers!
>> Ben Root
>>
>>
>> On Wed, Nov 8, 2017 at 10:10 AM, Slavin, Jonathan <
>> jslavin at cfa.harvard.edu> wrote:
>>
>>> Hi,
>>>
>>> I'm wondering if anyone knows of a good way to relabel axes for a
>>> particular case I'm dealing with. I'm making a 2D histogram, using hist2d
>>> of course.  The thing is that for my case, where I'm plotting the density
>>> vs. pressure for results from a hydro run, it makes more sense to use the
>>> log of the quantities as the inputs for hist2d.  So then I need to give the
>>> log of the density and pressure to hist2d. This works fine for making the
>>> histogram, but then the axes are labelled with log10(n), log10(P).  I'd
>>> prefer to have the axes labelled as for a logarithmic plot, so instead of
>>> say 4.0, 10^4.  Is there a simple way of doing that. I'm pretty sure I can
>>> just specify by hand the ticks and tick labels, though that's kind of a
>>> pain. Any help would be appreciated.
>>>
>>> Regards,
>>> Jon
>>>
>>> --
>>> ________________________________________________________
>>> Jonathan D. Slavin                 Harvard-Smithsonian CfA
>>> jslavin at cfa.harvard.edu       60 Garden Street, MS 83
>>> phone: (617) 496-7981       Cambridge, MA 02138-1516
>>> cell: (781) 363-0035             USA
>>> ________________________________________________________
>>>
>>>
>>> _______________________________________________
>>> Matplotlib-users mailing list
>>> Matplotlib-users at python.org
>>> https://mail.python.org/mailman/listinfo/matplotlib-users
>>>
>>>
>>
>
>
> --
> ________________________________________________________
> Jonathan D. Slavin                 Harvard-Smithsonian CfA
> jslavin at cfa.harvard.edu       60 Garden Street, MS 83
> phone: (617) 496-7981       Cambridge, MA 02138-1516
> cell: (781) 363-0035             USA
> ________________________________________________________
>
>
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