[yt-users] Bin 1D spherically averaged profiles uniformly on log radius

[Nathan Goldbaum]

And by default, I think the radius field is always uniformly binned in log
space. You can see for yourself by inspecting the underlying Profile1D
object associated with the ProfilePlot:

http://paste.yt-project.org/show/6946/

Here profile.x is the centers of the radius bins (profile.x_bins is the bin
edges). Note how when I take the logarithm of profile.x, then subtract
neighboring bin centers, I get a constant array: the bin sizes are constant
in log space.

-Nathan

On Thu, Nov 24, 2016 at 7:16 PM, Suoqing Ji <suoqing at physics.ucsb.edu>
wrote:

> Hi Marco,
>
> Sorry that I do not understand what you mean by saying “does not bin the
> data uniformly in log radius”... In ProfilePlot you can set x_log=True to
> get a log bin in radius (http://yt-project.org/docs/de
> v/reference/api/generated/yt.visualization.profile_plotter.
> ProfilePlot.html#yt.visualization.profile_plotter.ProfilePlot), and
> np.logspace will be called to get a log bin uniformly.
>
> Do you want something other than that?
>
> Best wishes,
> --
> Suoqing JI
> Ph.D Candidate
> Department of Physics
> University of California, Santa Barbara
> http://web.physics.ucsb.edu/~suoqing
>
> On Nov 24, 2016, at 3:39 PM, Marco Surace <marco.surace at port.ac.uk> wrote:
>
> Hi all,
>
> I have been using yt.ProfilePlot to create 1D spherically averaged
> profiles of say the gas temperature in a simulation as a function of
> radius, starting from the centre of a halo out to a given radius.
>
> Does anyone know how I can bin the data uniformly in log radius? This
> would improve the resolution at smaller radii. It currently does not bin
> the data uniformly in linear or log radius. I haven't found an option with
> ProfilePlot for affecting the binning.
>
> Best wishes,
> Marco
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