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<h4><a name="meta">6.1.18 <code>meta</code></a></h4>
<p><strong>Usage:</strong>
<pre> meta [<item> ...]</pre></p>
<p>Provides information about the metadata for each column.
This filter turns the table sideways, so that each row
of the output corresponds to a column of the input.
The columns of the output table contain metadata items
such as column name, units, UCD etc corresponding to each
column of the input table.
</p>
<p>By default the output table contains columns for the
following items:
<ul>
<li><code>Index</code>: Position of column in table
</li>
<li><code>Name</code>: Column name
</li>
<li><code>Class</code>: Data type of objects in column
</li>
<li><code>Shape</code>: Shape of array values
</li>
<li><code>ElSize</code>: Size of each element in column (mostly useful for strings)
</li>
<li><code>Units</code>: Unit string
</li>
<li><code>Description</code>: Description of data in the column
</li>
<li><code>UCD</code>: Unified Content Descriptor
</li>
<li><code>Utype</code>: Type in data model
</li>
</ul>
as well as any table-specific column metadata items that
the table contains.
</p>
<p>However, the output may be customised by supplying
one or more <code><item></code> headings.
These may be selected from the above as well as the following:
<ul>
<li><code>UCD_desc</code>: Textual description of UCD
</li>
</ul>
as well as any table-specific metadata. It is not an error
to specify an item for which no metadata exists in any of
the columns (such entries will result in empty columns).
</p>
<p>Any table parameters of the input table are propagated
to the output one.
</p>
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<hr><i>STILTS - Starlink Tables Infrastructure Library Tool Set<br>Starlink User Note256<br>STILTS web page:
<a href="http://www.starlink.ac.uk/stilts/">http://www.starlink.ac.uk/stilts/</a><br>Author email:
<a href="mailto:m.b.taylor@bristol.ac.uk">m.b.taylor@bristol.ac.uk</a><br>Mailing list:
<a href="mailto:topcat-user@jiscmail.ac.uk">topcat-user@jiscmail.ac.uk</a><br></i></body>
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