Hi Andreas, Josh, Anthony and Antonio, Thanks for your help.
Andre On Jun 26, 2013, at 2:48 AM, Antonio Valentino wrote: > Hi Andre', > > Il 25/06/2013 10:26, Andre' Walker-Loud ha scritto: >> Dear PyTables users, >> >> I am trying to figure out the best way to write some metadata into some >> files I have. >> >> The hdf5 file looks like >> >> /root/data_1/stat >> /root/data_1/sys >> >> where "stat" and "sys" are Arrays containing statistical and systematic >> fluctuations of numerical fits to some data I have. What I would like to do >> is add another object >> >> /root/data_1/fit >> >> where "fit" is just a metadata key that describes all the choices I made in >> performing the fit, such as seed for the random number generator, and many >> choices for fitting options, like initial guess values of parameters, >> fitting range, etc. >> >> I began to follow the example in the PyTables manual, in Section 1.2 "The >> Object Tree", where first a class is defined >> >> class Particle(tables.IsDescription): >> identity = tables.StringCol(itemsize=22, dflt=" ", pos=0) >> ... >> >> and then this class is used to populate a table. >> >> In my case, I won't have a table, but really just want a single object >> containing my metadata. I am wondering if there is a recommended way to do >> this? The "Table" does not seem optimal, but I don't see what else I would >> use. >> >> >> Thanks, >> >> Andre >> > > For leaf nodes (Tables, Array, ets) you can use the "attrs" attribute > set [1] as described in [2]. > For group objects (like e.g. "root") you can use the "set_node_attr" > method [3] of File objects or "_v_attrs". > > > cheers > > [1] > http://pytables.github.io/usersguide/libref/declarative_classes.html#attributesetclassdescr > [2] > http://pytables.github.io/usersguide/tutorials.html#setting-and-getting-user-attributes > [3] > http://pytables.github.io/usersguide/libref/file_class.html#tables.File.set_node_attr > > > -- > Antonio Valentino > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by Windows: > > Build for Windows Store. > > http://p.sf.net/sfu/windows-dev2dev > _______________________________________________ > Pytables-users mailing list > Pytables-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/pytables-users ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ Pytables-users mailing list Pytables-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pytables-users
