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<meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi,<div class=""><br class=""></div><div class="">Thanks for your help.</div><div class=""><br class=""></div><div class="">Nathan, I am using OWLS, a Gadget format data.</div><div class=""><br class=""></div><div class="">Andrew, what do you mean by ‘add a field that has already been defined’? I am not defining a new field. Does it mean there is already a new field in my data? If so, why yt says it’s a new field since it’s already there? I am kind of confused about it.</div><div class=""><br class=""></div><div class="">Cheers,</div><div class="">Yuxiang<br class="">
<br class=""><div><blockquote type="cite" class=""><div class="">On 22 Jan 2015, at 09:43, Nathan Goldbaum <<a href="mailto:nathan12343@gmail.com" class="">nathan12343@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Hi Yuxiang,<div class=""><br class=""></div><div class="">What simulation code produced these files? Judging by the naming, I'd have to guess some flavor of gadget, but it's not clear based on your e-mail.</div><div class=""><br class=""></div><div class="">-Nathan</div></div><div class="gmail_extra"><br class=""><div class="gmail_quote">On Tue, Jan 20, 2015 at 4:29 PM, Yuxiang Qin <span dir="ltr" class=""><<a href="mailto:yuxiangq@student.unimelb.edu.au" target="_blank" class="">yuxiangq@student.unimelb.edu.au</a>></span> wrote:<br class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word" class=""><span style="font-size:14px" class="">Dear yt-users,</span><div class=""><span style="font-size:14px" class=""><br class=""></span></div><div class=""><span style="font-size:14px" class="">I have a tiny question about loading files.</span></div><div class=""><span style="font-size:14px" class=""><br class=""></span></div><div class=""><span style="font-size:14px" class="">I understand when yt load files, it will load all the files in the directory. For example: if I do </span><span style="font-size:14px;background-color:rgb(0,0,0)" class=""><font color="#29f914" face="Andale Mono" class="">ds=yt.load('snap_103.0.hdf5’)</font></span><span style="font-size:14px" class="">, then </span><span style="font-size:14px;color:rgb(41,249,20);font-family:'Andale Mono';background-color:rgb(0,0,0)" class="">ds.field_list</span><span style="font-size:14px" class=""> , yt would open all the files:</span></div><div class=""><span style="font-size:14px" class=""><br class=""></span></div><div class=""><div style="margin:0px;font-family:'Andale Mono';color:rgb(51,196,38);background-color:rgb(0,0,0)" class=""><span style="font-size:14px" class="">snap_103.0.hdf5<span style="color:#29f914" class="">* </span>snap_103.16.hdf5<span style="color:#29f914" class="">* </span>snap_103.22.hdf5<span style="color:#29f914" class="">* </span>snap_103.29.hdf5<span style="color:#29f914" class="">* </span>snap_103.6.hdf5<span style="color:#29f914" class="">*</span></span></div><div style="margin:0px;font-family:'Andale Mono';color:rgb(51,196,38);background-color:rgb(0,0,0)" class=""><span style="font-size:14px" class="">snap_103.10.hdf5<span style="color:#29f914" class="">* </span>snap_103.17.hdf5<span style="color:#29f914" class="">* </span>snap_103.23.hdf5<span style="color:#29f914" class="">* </span>snap_103.2.hdf5<span style="color:#29f914" class="">* </span>snap_103.7.hdf5<span style="color:#29f914" class="">*</span></span></div><div style="margin:0px;font-family:'Andale Mono';color:rgb(51,196,38);background-color:rgb(0,0,0)" class=""><span style="font-size:14px" class="">snap_103.11.hdf5<span style="color:#29f914" class="">* </span>snap_103.18.hdf5<span style="color:#29f914" class="">* </span>snap_103.24.hdf5<span style="color:#29f914" class="">* </span>snap_103.30.hdf5<span style="color:#29f914" class="">* </span>snap_103.8.hdf5<span style="color:#29f914" class="">*</span></span></div><div style="margin:0px;font-family:'Andale Mono';color:rgb(51,196,38);background-color:rgb(0,0,0)" class=""><span style="font-size:14px" class="">snap_103.12.hdf5<span style="color:#29f914" class="">* </span>snap_103.19.hdf5<span style="color:#29f914" class="">* </span>snap_103.25.hdf5<span style="color:#29f914" class="">* </span>snap_103.31.hdf5<span style="color:#29f914" class="">* </span>snap_103.9.hdf5<span style="color:#29f914" class="">*</span></span></div><div style="margin:0px;font-family:'Andale Mono';color:rgb(51,196,38);background-color:rgb(0,0,0)" class=""><span style="font-size:14px" class="">snap_103.13.hdf5<span style="color:#29f914" class="">* </span>snap_103.1.hdf5<span style="color:#29f914" class="">* </span>snap_103.26.hdf5<span style="color:#29f914" class="">* </span>snap_103.3.hdf5<span style="color:#29f914" class="">* </span></span></div><div style="margin:0px;font-family:'Andale Mono';color:rgb(51,196,38);background-color:rgb(0,0,0)" class=""><span style="font-size:14px" class="">snap_103.14.hdf5<span style="color:#29f914" class="">* </span>snap_103.20.hdf5<span style="color:#29f914" class="">* </span>snap_103.27.hdf5<span style="color:#29f914" class="">* </span>snap_103.4.hdf5<span style="color:#29f914" class="">* </span></span></div><div style="margin:0px;font-family:'Andale Mono';color:rgb(51,196,38);background-color:rgb(0,0,0)" class=""><span style="font-size:14px" class="">snap_103.15.hdf5<span style="color:#29f914" class="">* </span>snap_103.21.hdf5<span style="color:#29f914" class="">* </span>snap_103.28.hdf5<span style="color:#29f914" class="">* </span>snap_103.5.hdf5<span style="color:#29f914" class="">* </span></span></div></div><div class=""><span style="font-size:14px" class=""> <br class=""></span><div class="">
<div style="text-align:start;text-indent:0px;word-wrap:break-word" class=""><div style="letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px;" class=""><span style="font-size:14px" class=""><span style="font-family:Helvetica,Arial,sans-serif;background-color:rgb(255,255,255)" class="">However, if our data only has one file :</span><span style="color:rgb(51,196,38);font-family:'Andale Mono';background-color:rgb(0,0,0)" class="">snap_103.hdf5</span><span style="font-family:'Andale Mono';background-color:rgb(0,0,0);color:rgb(41,249,20)" class="">*</span><span style="font-family:Helvetica,Arial,sans-serif;background-color:rgb(255,255,255)" class="">, then if I do </span><span style="background-color:rgb(0,0,0)" class=""><font color="#29f914" face="Andale Mono" class="">ds=yt.load('snap_103.hdf5’)</font></span>, then <span style="color:rgb(41,249,20);font-family:'Andale Mono';background-color:rgb(0,0,0)" class="">ds.field_list</span>, yt would still try to open all the files from <span style="color:rgb(51,196,38);font-family:'Andale Mono';background-color:rgb(0,0,0)" class="">snap_103.0.hdf5</span>, however there is no <span style="color:rgb(51,196,38);font-family:'Andale Mono';background-color:rgb(0,0,0)" class="">snap_103.0.hdf5</span>. It would report error: </span></div><div style="letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px;" class=""><span style="font-size:14px" class=""><br class=""></span></div><div style="color: rgb(41, 249, 20); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; margin: 0px; font-family: 'Andale Mono'; background-color: rgb(0, 0, 0); min-height: 14px;" class=""><span style="font-size:14px" class=""><span style="color:rgb(195,55,32)" class="">IOError</span>: Unable to open file (Unable to open file: name = '/lustre/projects/p071_swin/yqin/smaug/ref_eff_l010n0128/data/snapshot_102/snap_102.0.hdf5', errno = 2, error message = 'no such file or directory', flags = 0, o_flags = 0) <span style="" class=""></span></span></div><div style="letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px;" class=""><span style="font-family:Helvetica,Arial,sans-serif;background-color:rgb(255,255,255);font-size:14px" class=""><br class=""></span></div><div class=""><font face="Helvetica, Arial, sans-serif" class=""><span style="background-color:rgb(255,255,255);font-size:14px" class="">Is there an argument saying I don’t want to do loading recursively? I can make a link named </span></font><span style="color:rgb(51,196,38);font-family:'Andale Mono';font-size:14px;background-color:rgb(0,0,0)" class="">snap_103.0.hdf5</span><span style="font-family:Helvetica,Arial,sans-serif;font-size:14px;background-color:rgb(255,255,255)" class=""> to </span><span style="color:rgb(51,196,38);font-family:'Andale Mono';font-size:14px;background-color:rgb(0,0,0)" class="">snap_103.hdf5</span><span style="background-color:rgb(255,255,255)" class=""><font face="Helvetica, Arial, sans-serif" class=""><span style="font-size:14px" class="">. But it’s kind of inconvenient.</span></font></span></div><div class=""><font face="Helvetica, Arial, sans-serif" class=""><span style="background-color:rgb(255,255,255)" class=""><span style="font-size:14px" class=""><br class=""></span></span></font></div><div class=""><font face="Helvetica, Arial, sans-serif" class=""><span style="background-color:rgb(255,255,255)" class=""><span style="font-size:14px" class="">Cheers,</span></span></font></div><div style="letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px;" class=""><span style="font-size:14px" class=""><span style="font-family:Helvetica,Arial,sans-serif;background-color:rgb(255,255,255)" class="">--</span></span></div><div style="letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px;" class=""><span style="font-size:14px" class=""><span style="font-family:Helvetica,Arial,sans-serif;background-color:rgb(255,255,255)" class="">Yuxiang Qin</span></span></div><div style="letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px;" class=""><span style="font-size:14px" class=""><span style="background-color:rgb(255,255,255)" class=""><font face="Helvetica, Arial, sans-serif" class="">PhD Student</font><br style="font-family:Helvetica,Arial,sans-serif" class=""></span><span style="font-family:Helvetica,Arial,sans-serif;background-color:rgb(255,255,255)" class="">School of Physics</span><br style="font-family:Helvetica,Arial,sans-serif" class=""><span style="font-family:Helvetica,Arial,sans-serif;background-color:rgb(255,255,255)" class="">The University of Melbourne</span><br style="font-family:Helvetica,Arial,sans-serif" class=""><span style="font-family:Helvetica,Arial,sans-serif;background-color:rgb(255,255,255)" class="">VIC, Australia, 3010</span></span><br style="font-family:Helvetica,Arial,sans-serif;font-size:15px" class=""></div></div>
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