<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Hi Alex,</div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature">Sorry about this.I think that this is a bug. I'll look into it.</div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature">Best,</div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature">John<br><br><span style="font-size: 13pt; background-color: rgba(255, 255, 255, 0);">John ZuHone</span><br><div><span style="background-color: rgba(255, 255, 255, 0);">Kavli Center for Astrophysics and Space Research<br>Massachusetts Institute of Technology<br><a href="x-apple-data-detectors://0" x-apple-data-detectors="true" x-apple-data-detectors-type="address" x-apple-data-detectors-result="0">77 Massachusetts Ave.</a>, 37-582G<br><a href="x-apple-data-detectors://1/0" x-apple-data-detectors="true" x-apple-data-detectors-type="address" x-apple-data-detectors-result="1/0">Cambridge, MA 02139</a><br>(w) <a href="tel:617-253-2354" x-apple-data-detectors="true" x-apple-data-detectors-type="telephone" x-apple-data-detectors-result="1/1">617-253-2354</a><br>(m) <a href="tel:781-708-5004" x-apple-data-detectors="true" x-apple-data-detectors-type="telephone" x-apple-data-detectors-result="1/2">781-708-5004</a><br><a href="mailto:jzuhone@space.mit.edu" x-apple-data-detectors="true" x-apple-data-detectors-type="link" x-apple-data-detectors-result="1/3">jzuhone@space.mit.edu</a><br><a href="mailto:jzuhone@gmail.com" x-apple-data-detectors="true" x-apple-data-detectors-type="link" x-apple-data-detectors-result="2">jzuhone@gmail.com</a><br><a href="http://www.jzuhone.com/" x-apple-data-detectors="true" x-apple-data-detectors-type="link" x-apple-data-detectors-result="3">http://www.jzuhone.com</a></span><br style="font-family: UICTFontTextStyleBody; -webkit-text-size-adjust: auto;"></div></div><div><br>On Jul 16, 2015, at 2:35 PM, Alex Hill <<a href="mailto:ashill@haverford.edu">ashill@haverford.edu</a>> wrote:<br><br></div><blockquote type="cite"><div><span>Hi,</span><br><span></span><br><span>I’m trying to use the units_override option in loaddata (because I have a data set with metadata labeling itself as cgs but is actually in kpc-Myr-Msun units), following the example in the documentation here: <<a href="http://yt-project.org/doc/analyzing/units/comoving_units_and_code_units.html">http://yt-project.org/doc/analyzing/units/comoving_units_and_code_units.html</a>></span><br><span></span><br><span>I find that, for data sets created with FLASH 2.5 and FLASH 4.2, units_override does nothing. units_override also does nothing for the sample enzo data sets enzo_tiny_cosmology and IsolatedGalaxy. It *does* work for the sample Athena data set.</span><br><span></span><br><span>Any suggestions? Is units_override supported for Athena but not for Flash or Enzo?</span><br><span></span><br><span>Examples here and copied below with the output: <<a href="http://paste.yt-project.org/show/5713/">http://paste.yt-project.org/show/5713/</a>></span><br><span></span><br><span>units_override={"length_unit":(1.0,"cm"),"time_unit":(1.0,"s"),"mass_unit":(1.0,"g")}</span><br><span>ds=yt.load('/Users/hil32p/src/yt/doc/source/quickstart/IsolatedGalaxy/galaxy0030/galaxy0030')</span><br><span>print ds.length_unit</span><br><span>print ds.mass_unit</span><br><span>print ds.time_unit</span><br><span></span><br><span>output:</span><br><span></span><br><span>3.086e+24 cm</span><br><span>8.11471080586e+43 g</span><br><span>2.32946e+18 s</span><br><span></span><br><span>ds=yt.load('/Users/hil32p/src/yt/doc/source/quickstart/IsolatedGalaxy/galaxy0030/galaxy0030',units_override=units_override)</span><br><span>print ds.length_unit</span><br><span>print ds.mass_unit</span><br><span>print ds.time_unit</span><br><span></span><br><span>output:</span><br><span></span><br><span>3.086e+24 cm</span><br><span>8.11471080586e+43 g</span><br><span>2.32946e+18 s</span><br><span></span><br><span>However, it does work for the Athena dataset used in the example:</span><br><span></span><br><span>ds = yt.load('/Users/hil32p/Downloads/MHDSloshing/virgo_low_res.0054.vtk')</span><br><span>1.0 cm</span><br><span>1.0 g</span><br><span>1.0 s</span><br><span></span><br><span>units_override={"length_unit":(1.0,"kpc"),"time_unit":(1.0,"Myr"),"mass_unit":(1.0,"Msun")}</span><br><span>ds = yt.load('/Users/hil32p/Downloads/MHDSloshing/virgo_low_res.0054.vtk', units_override=units_override)</span><br><span>1.0 kpc</span><br><span>1.0 Msun</span><br><span>1.0 Myr</span><br><span></span><br><span>I am running yt 3.1 with python 2.7, both installed via conda.</span><br><span></span><br><span>Cheers,</span><br><span> Alex</span><br><span></span><br><span>---------</span><br><span>Alex Hill</span><br><span>Senior Postdoctoral Research Associate</span><br><span>Strawbridge Observatory</span><br><span>Department of Astronomy, Haverford College</span><br><span>370 Lancaster Ave, Haverford, PA 19041 USA</span><br><span>phone: +1 484 297 2136</span><br><span>email/iMessage: <a href="mailto:ashill@haverford.edu">ashill@haverford.edu</a></span><br><span></span><br><span>_______________________________________________</span><br><span>yt-users mailing list</span><br><span><a href="mailto:yt-users@lists.spacepope.org">yt-users@lists.spacepope.org</a></span><br><span><a href="http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org">http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org</a></span><br></div></blockquote></body></html>