setparam
Usage:
setparam [-type byte|short|int|long|float|double|boolean|string]
[-desc <descrip>] [-unit <units>] [-ucd <ucd>] [-utype <utype>]
<pname> <pval>
Sets a named parameter in the table to a given value.
The parameter named <pname> is set
to the value <pval>.
By default the type of the parameter is determined automatically
(if it looks like an integer it's an integer etc)
but this can be overridden using the -type flag.
The parameter description may be set using the
-desc flag.