Re: [yt-users] Halo Profiler

Hi Carolyn, You told me earlier you were having a problem when you were passing just the filename to the parameter file. That is the proper syntax for that. Can you post the error output when you try to do it that way? Britton On Fri, May 13, 2011 at 3:40 PM, Carolyn Peruta wrote:

Sure thing.

import os import sys

from yt.mods import *

from yt.analysis_modules.api import EnzoSimulation from yt.analysis_modules.halo_profiler.api import * from yt.analysis_modules.halo_finding.api import *

On May 13, 2011, at 3:38 PM, Britton Smith wrote:

Hi Carolyn,

Can you paste in here all the imports that are in the top of the script?

Britton

On Fri, May 13, 2011 at 3:37 PM, Carolyn Peruta wrote:

...

I have a script which calls HaloProfiler and throws the following error:

Traceback (most recent call last): File "sim_halo_profiler.py", line 28, in <module> fancy_padding=True, rearrange=True)) File "/share/home/01078/tg803421/yt-x86_64/lib/python2.6/site-packages/yt-2.1stable-py2.6-linux-x86_64.egg/yt/analysis_modules/halo_profiler/multi_halo_profiler.py", line 22 8, in __init__ self.pf = load(self.dataset) File "/share/home/01078/tg803421/yt-x86_64/lib/python2.6/site-packages/yt-2.1stable-py2.6-linux-x86_64.egg/yt/convenience.py", line 85, in load if c._is_valid(*args, **kwargs): candidates.append(n) File "/share/home/01078/tg803421/yt-x86_64/lib/python2.6/site-packages/yt-2.1stable-py2.6-linux-x86_64.egg/yt/frontends/tiger/data_structures.py", line 202, in _is_valid return os.path.exists(args[0] + "rhob") TypeError: unsupported operand type(s) for +: 'EnzoStaticOutput' and 'str'

I did a quick test with iyt and it turns out it produces this error with the most simple form, hp=HaloProfiler(pf).

Any ideas?

Best,

Carolyn

On May 13, 2011, at 3:19 PM, Britton Smith wrote:

Hi Carolyn,

I don't think it's a version difference. The halo profiler is supposed to take just the path to the dataset. It should do the load call in the halo profiler. I'm not sure why that would be happening. Either way, if it's working, that's all that matter.

Also, nice job with the logos. I think yours had the best aesthetics of them all. I voted for 7.

Britton

On Fri, May 13, 2011 at 12:27 PM, Carolyn Peruta wrote:

...

Thanks again for sending such great looking volume renderings!

I started halo analysis today and I couldn't get your sim_halo_profiler script to work unless I added: pf=load(output['filename']) and changed all the calls of output['filename'] to pf. I kept getting an error, 'str' object has no attribute 'h'. Could this be due to some change in yt versions between your use of this script and mine?

-C

On Mar 22, 2011, at 4:23 PM, Britton Smith wrote:

...

Hi Carolyn,

I'm attaching some analysis code you might find useful.

yt-advanced-plotting.tar contains some scripts for making projections and nice images from those projections. The subdirectory in there called advanced_examples contains the scripts needed to make the image in the test_frames directory in there. Specifically, those scripts can make the image which has particles overlaid that are colored by age and sized by mass. I think that will be perfect for what you're working on.

I've also attached a script for running the halo profiler to make radial profiles of all the halos in your simulation. Something you might find useful in there is that I've added profile fields for stellar_density, StarAgeYrs, and StarMetallicity. These may be very interesting to look at as a function of radius within your target halo.

Let me know if you have any questions about this stuff. Also, if you have any other ideas for analysis that you're not sure how to implement, let me know and we can discuss ways to implement them.

Keep rocking.

Britton

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