Mailman 3 April 2014 - yt-dev

Issue #828: Clump finder raises a NotImplementedError (yt_analysis/yt)
by Nathan Goldbaum April 7, 2014

April 7, 2014

New issue 828: Clump finder raises a NotImplementedError https://bitbucket.org/yt_analysis/yt/issue/828/clump-finder-raises-a-notimp… Nathan Goldbaum: This example script comes from the docs: ``` #!python from yt.mods import * from yt.analysis_modules.level_sets.api import * pf = load("IsolatedGalaxy/galaxy0030/galaxy0030") data_source = pf.disk([0.5, 0.5, 0.5], [0., 0., 1.], (8., 'kpc'), (1., 'kpc')) c_min = 10**np.floor(np.log10(data_source['density']).min() ) … [View More]

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Proposal: merge 'experimental' bookmark into the 'development' bookmark
by Nathan Goldbaum April 6, 2014

April 6, 2014

Hi all, This came up during the google hangout this morning and I think it's a good idea. Right now there are four heads and three named branches in the yt_analysis/yt mercurial repository: - "stable" This corresponds to the 2.6.2 stable release. - "yt" This corresponds to the 2.7dev branch - "development" This is on the yt-3.0 named branch, but before the unitrefactor and field refactor were merged in. - "experimental" This is also on the yt-3.0 named branch, and incldues … [View More]

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Why are particle masses returned in code units?
by Nathan Goldbaum April 6, 2014

April 6, 2014

Hi all, Does anyone know why particle fields are turned in code units? For example: >>> import yt >>> ds = yt.load('IsolatedGalaxy/galaxy0030/galaxy0030') >>> ad = ds.all_data() >>> print ad['all', 'particle_mass'] [ 5.24322377e-06 5.24322377e-06 5.24423058e-06 ..., 2.51688903e-06 2.52040900e-06 2.52345330e-06] code_mass >>> print ad['all', 'particle_position_x'] [ 0.50070677 0.50118382 0.50118984 ..., 0.49867166 0.49857796 0.… [View More]

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Issue #827: Enzo particle fields work differently than the other frontends (yt_analysis/yt)
by Nathan Goldbaum April 6, 2014

April 6, 2014

New issue 827: Enzo particle fields work differently than the other frontends https://bitbucket.org/yt_analysis/yt/issue/827/enzo-particle-fields-work-di… Nathan Goldbaum: Since we use enzo field names as the 'standard' yt fields the Enzo frontend is setup such that it doesn't define any aliases. This introduces an asymmetry compared to the other frontends, since alias fields are always in CGS. Take as an example the following script: ``` #!python import yt fns = [ 'sizmbhloz-… [View More]

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bug in SFRD calculation
by Geoffrey So April 5, 2014

April 5, 2014

There seems to be a bug in the star formation rate density calculation routine. The volume is only the real 'proper volume' at the current redshift and not at any other redshifts, because it uses the current redshift in the calculation of proper volume in all redshifts. #--------------------------------- from yt.mods import * from yt.analysis_modules.star_analysis.api import * import pylab pf=load('HD1200/HD1200') dd=pf.h.all_data() sfr = StarFormationRate(pf, data_source=dd, bins=10) sfr.… [View More]

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Issue #826: FRB unit error when using Tipsy datasets (yt_analysis/yt)
by smbenincasa April 4, 2014

April 4, 2014

New issue 826: FRB unit error when using Tipsy datasets https://bitbucket.org/yt_analysis/yt/issue/826/frb-unit-error-when-using-ti… smbenincasa: There's an issue with units when you make an FRB from a Tipsy dataset (Ben Keller suggested I post). Here's the error /1/home/benincsm/yt/yt-3.0-test/yt/yt/units/yt_array.py(776)__array_wrap__() 775 else: --> 776 raise RuntimeError("Operation is not defined.") 777 if unit is None: I've attached the script (… [View More]

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Hangout on Friday
by Matthew Turk April 4, 2014

April 4, 2014

Hi all, This Friday I'm going to have a hangout on G+ just as a space to catch up on things. 11AM eastern, and I will commit to being there for two hours to give West Coasters some time to join in that isn't too early. Please stop by if you have questions, want to chat development, want to do some code sprinting, or are running into issues with anything. It would also be a good opportunity to go over the trello board and update all the cards. https://plus.google.com/events/c72bbg1u0kmbgj20cfn0gclbhhs -Matt

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Should we remove plot collection before 3.0?
by Matthew Turk April 2, 2014

April 2, 2014

Hi all, I'm inclined to remove plot collection before yt 3.0 is released. PhasePlot and ProfilePlot both work in 2.6, and we've actually seen quite a bit of migration to them. If there's enough support, I'll bring this to a YTEP and we can hash it out there, but before I went to that point I figured I'd look for a handful of +1's here. -Matt

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Re: [yt-dev] [yt-users] Fwd: [IPython-dev] [ANNOUNCE] IPython 2.0.0
by Matthew Turk April 2, 2014

April 2, 2014

(Bringing back to yt-dev) I think we should come up with a timescale for upgrading the dependency stack. I'd like to propose that we upgrade the script for the 3.0 release to include IPython 2.0.0, and that the widgets Ben, Nathan and Sam have been working on make their way in to the repo. -Matt On Wed, Apr 2, 2014 at 2:05 AM, Nathan Goldbaum <nathan12343(a)gmail.com> wrote: > > > ---------- Forwarded message ---------- > From: MinRK <benjaminrk(a)gmail.com> > … [View More]

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Issue #825: Creating an all_data object does not generate the field_info object. (yt_analysis/yt)
by Nathan Goldbaum April 2, 2014

April 2, 2014

New issue 825: Creating an all_data object does not generate the field_info object. https://bitbucket.org/yt_analysis/yt/issue/825/creating-an-all_data-object-… Nathan Goldbaum: The following script and traceback illustrates the issue: ``` #!python import yt ds = yt.load('IsolatedGalaxy/galaxy0030/galaxy0030') ad = ds.all_data() print ad.quantities.total_mass() ``` ``` File "test.py", line 7, in <module> print ad.quantities.total_mass() File "/Users/goldbaum/Documents/yt-… [View More]

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