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      <h4><a name="clearparams">6.1.9 <code>clearparams</code></a></h4>
      <p><strong>Usage:</strong>
         <pre>   clearparams <pname> ...</pre></p>
      <p>Clears the value of one or more named parameters.
         Each of the <code><pname></code> values supplied may be
         either a parameter name or a simple wildcard expression
         matching parameter names.  Currently the only wildcarding
         is a "<code>*</code>" to match any sequence of characters.
         <code>clearparams *</code> will clear all the parameters
         in the table.
         
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      <p>It is not an error to supply <code><pname></code>s
         which do not exist in the table - these have no effect.
         
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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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